Slippery removal
The first problem is not raw damage total but damage frequency. A deck that removes all 9 Slippery charges quickly reaches the real HP bar much sooner than a deck spending expensive single attacks into one-point damage instances.
Slay the Spire 2 Boss
Vantom Boss Guide
Base HP
173
Ascension HP
183
Moves
4
Encounters
1
Boss Strategy
How to Beat Vantom
Quick Strategy
Treat Vantom as a Slippery-removal check before it becomes a normal damage race. On Ascension it begins with 9 Slippery, so the first nine times it loses HP are heavily suppressed. Multi-hit attacks, recurring damage, Poison, Lightning Orbs, Thorns, and other frequent damage instances are much better at clearing those charges than one oversized attack. Preserve enough HP or dense defense for Dismember, which hits for 30 on Ascension and adds Wounds, then finish before repeated Dismember cycles pollute the deck and Prepare Strength makes the later attacks harder to block.
What This Fight Tests
Dismember defense
Dismember is the largest attack in the cycle at 30 Ascension damage. The hit is difficult enough on its own, and the Wounds it adds also make future draw cycles worse.
Passive output
Recurring damage is unusually valuable because every separate damage event can help remove Slippery without requiring another dedicated attack draw. Poison, Lightning Orbs, Thorns, and similar effects all improve the opening phase.
Fight length
Prepare adds Strength, while repeated Dismembers add more Wounds. Even after Slippery is gone, the fight should not be allowed to drift indefinitely because both incoming damage and draw quality become worse.
Key Decisions
Do not spend your biggest attack into full Slippery
When Vantom still has many Slippery charges, I care more about the number of separate HP-loss events than the printed damage on one attack. Spending an expensive single-hit finisher to remove one Slippery charge is usually much worse than using several small hits first and saving the payoff for the real HP bar.
Multi-hit is temporarily scaling damage
A 3-hit or 4-hit card may look mediocre by normal damage-per-Energy standards, but against Vantom every hit can remove another Slippery charge. Until Slippery is gone, hit count itself is a form of matchup-specific scaling.
Passive damage is doing two jobs
Poison ticks, Lightning Orbs, Thorns, and other recurring damage both progress the Slippery phase and continue producing real damage afterward. That makes them much more valuable than effects that are useful only during the opening nine charges.
Doom can ignore the intended opening puzzle
Doom is especially strong for Necrobinder because it does not need to deal ordinary damage through Slippery. A functioning Doom plan can therefore pressure Vantom without first spending nine separate attacks removing the passive.
Resting can be correct even with a strong deck
Dismember is a 30-damage Ascension hit and can be difficult to fully Block while the deck is still spending cards clearing Slippery. If I do not have a reliable Weak or dense defensive answer for that turn, entering with more HP can be worth more than one marginal upgrade.
Combat State
Innate Powers
Combat Data
Moves
4
moves
Ink Blot
Attack
INK_BLOT
Damage
7 → 8
Inky Lance
Attack
INKY_LANCE
Damage
6 × 2 → 7 × 2
12 → 14 total
Dismember
Attack Status
DISMEMBER
Damage
26 → 30
Prepare
Buff
PREPARE
Power Effects
Enemy AI
Attack Pattern
CycleInk Blot → Inky Lance → Dismember → Prepare → repeat
Initial move:
Ink Blot
View pattern states
Ink Blot
move
Next:
INKY_LANCE_MOVE
Inky Lance
move
Next:
DISMEMBER_MOVE
Dismember
move
Next:
PREPARE_MOVE
Prepare
move
Next:
INK_BLOT_MOVE
Fight Plan
Vantom Fight Plan
The raw move pattern tells you what is coming. This plan focuses on what I want the deck to accomplish before each dangerous part of the fight.
Phase 01
Break Slippery
Remove the 9 Ascension Slippery charges efficiently without wasting the deck’s strongest damage payoffs.
- Count damage instances instead of only printed damage. Multi-hit attacks, Shivs, passive Orb damage, Poison ticks, Thorns, and other repeated damage sources are premium during this phase.
- Save expensive single-hit finishers when possible. Their real damage becomes much more valuable after Slippery has already been removed.
- Establish persistent damage early if the setup turn is safe. A recurring source can continue removing Slippery every turn without consuming additional card draws.
- Keep enough defense for the approaching Dismember turn. Clearing Slippery quickly is useful only if the deck survives long enough to exploit the real HP bar.
Watch for
- Using one large attack per turn and removing only one Slippery charge each time.
- Spending every card on hit count while entering Dismember with no defensive resources.
Phase 02
Convert into real damage
Once Slippery is low or gone, stop valuing tiny hits purely for frequency and convert the deck’s actual damage engine into Vantom’s HP.
- Reevaluate card value immediately after Slippery is removed. A low-damage multi-hit used only for charge removal may now be less valuable than the deck’s real scaling payoff.
- Continue using passive damage because it now contributes directly to the kill instead of only stripping charges.
- Prepare specifically for Dismember rather than smoothing defense evenly across every turn. The 30-damage hit is the main single-turn check.
- Track Wound accumulation after Dismember. Draw, Exhaust, discard, or other consistency tools gain value once the deck begins cycling through those Status cards.
Watch for
- Continuing to play low-output multi-hits after their Slippery-clearing job is already finished.
- Ignoring the Wounds because the first post-Dismember hand still happened to draw well.
Phase 03
Beat the Strength and Wound clock
Finish before repeated Prepare and Dismember cycles turn a solved fight into a scaling and consistency problem.
- After Prepare adds Strength, prioritize converting existing scaling into lethal instead of adding unnecessary extra setup.
- Use temporary damage resources when they prevent another Dismember cycle. Avoiding another 30-damage hit plus additional Wounds is worth substantial value.
- If Weak is available, line it up with Dismember when that produces more effective HP than using it on one of the smaller attacks.
- Do not chase perfect Status cleanup if Vantom is already inside a reliable kill window. Once the deck can finish, damage is the cleaner solution.
Watch for
- Taking another full cycle just to improve an already functioning engine.
- Spending the kill turn cleaning Wounds that no longer matter if Vantom dies now.
Dangerous Turns & Windows
Danger Window
Starting Slippery 9
On Ascension, Vantom begins with 9 Slippery. The first nine times it loses HP are heavily suppressed, so large single hits can spend substantial resources while making almost no real HP progress.
Response:
Lead with repeated damage instances. Multi-hit, Shivs, Poison ticks, Orbs, Thorns, and similar effects remove charges much more efficiently than isolated heavy attacks.
Danger Window
Inky Lance
Inky Lance deals 6 × 2 normally and 7 × 2 on Ascension. Multi-hit pressure also becomes more dangerous after Vantom starts gaining Strength from Prepare.
Response:
Do not ignore Strength growth just because the initial Inky Lance looks modest. Mitigation that performs well against multi-hit damage rises in value later in the fight.
Danger Window
Dismember
Dismember deals 26 normally and 30 on Ascension and adds Wounds into the discard pile. It is both the largest immediate hit and the source of the fight’s long-term draw pollution.
Response:
Reserve dense Block, Weak, a defensive potion, or enough HP for this turn. Then shorten the remaining fight so the added Wounds do not cycle repeatedly through the deck.
Danger Window
Prepare
Prepare grants Vantom 2 Strength. The buff makes later Inky Lance and Dismember cycles progressively more expensive to defend.
Response:
Treat Prepare as a conversion window rather than free unlimited setup. Use the non-attacking turn to push damage and finish before multiple Strength buffs accumulate.
Danger Window
Second Dismember cycle
By the time another Dismember arrives, Vantom has gained Strength and the first group of Wounds may already be interfering with draws.
Response:
Aim to finish before this becomes the normal state of the fight. If another cycle is unavoidable, prioritize consistency and a second dense defensive answer rather than more speculative scaling.
Before the Fight
How to Prepare for Vantom
I use these checks before committing the final rewards, upgrades, shop purchases, and potions leading into the Boss.
Hit frequencyCritical
How quickly can I remove 9 Slippery charges?
Ready when
The deck has multi-hit attacks, cheap repeated attacks, passive damage, Thorns, Poison, Orbs, or another reliable way to create many separate HP-loss events.
Warning
A deck with excellent total damage can still be slow if most of that damage comes from a few expensive single hits.
Dismember defenseCritical
What is my answer to 30 damage?
Ready when
The deck has enough Block, Weak, damage reduction, potion support, or HP to survive the large Ascension hit while still progressing through Slippery.
Warning
The opening phase can consume cards and Energy that would normally be available for defense, making the 30-damage turn harder than the number alone suggests.
Persistent damageHigh
Can I remove Slippery without spending a fresh attack every time?
Ready when
Poison, Orbs, Thorns, recurring generated attacks, or another persistent source can keep producing HP-loss events across multiple turns.
Warning
Purely hand-dependent damage makes every Slippery charge compete with normal defense and setup for card access.
Status controlHigh
Can I keep drawing real cards after Dismember?
Ready when
Draw, Exhaust, discard, transformation, or enough fight speed prevents Wounds from dominating later hands.
Warning
The first Wounds may seem harmless while still sitting in the discard pile, but repeated cycles turn them into real consistency failures.
WeakMedium
Can I line up Weak with the 30-damage hit?
Ready when
A reliable Weak source can be available on Dismember rather than being consumed on a much smaller attack.
Warning
Using the only Weak application on Ink Blot can save less HP than preserving it for Dismember.
HPMedium
Should I rest before Vantom?
Ready when
Current HP comfortably covers the expected Dismember leakage and the deck has another reliable defensive answer.
Warning
If Dismember is likely to connect for a large amount and the deck still needs several turns to remove Slippery, HP can be more valuable than a marginal upgrade.
Character Matchups
Vantom by Character
The Boss does not change between characters, but the part of the fight that matters most often does. These notes focus on what each character should adjust rather than repeating the general strategy.
Ironclad benefits strongly from multi-hit attacks because Vantom initially cares more about hit count than raw damage. A card such as Sword Boomerang can strip several Slippery charges in one play, allowing the deck’s heavier attacks to be saved for the real HP bar.
Prioritize
- Use multi-hit attacks early to clear Slippery instead of spending expensive single-hit finishers into one-point damage.
- Save high-damage Strength payoffs until Slippery is nearly gone whenever the turn allows it.
- Keep enough Block or HP for Dismember rather than assuming high frontload alone will end the fight before the 30-damage turn.
- After Slippery is removed, return to the deck’s normal highest-output damage sequence instead of continuing to prioritize hit count for its own sake.
Watch for
- Using the strongest single-hit attack while Vantom still has many Slippery charges.
- Overcommitting to charge removal and arriving at Dismember without a defensive line.
Silent has two natural Vantom answers. Shivs remove Slippery rapidly through repeated hits, while Poison produces recurring HP-loss events without requiring another attack draw every turn. Both approaches solve the opening mechanic differently but efficiently.
Prioritize
- Use Shiv volume to strip Slippery quickly when the physical engine is already functional.
- Value recurring Poison because each tick continues progressing the Slippery phase and then becomes real scaling damage afterward.
- Do not force Poison solely because it is good here when an existing Shiv or physical engine already solves the matchup.
- Preserve enough defensive density for Dismember instead of spending the whole early hand maximizing hit count.
Watch for
- Saving Shivs for a larger future turn while Slippery is still preventing meaningful damage.
- Adding a second damage package just for Vantom when the current engine already removes Slippery efficiently.
Defect naturally handles Slippery well because Lightning Orbs can repeatedly remove charges while the hand is doing something else. This reduces the need to distort card picks around Vantom and allows the deck to preserve normal damage and defensive cards for the rest of the fight.
Prioritize
- Establish Lightning or another recurring Orb output early enough that Slippery starts disappearing passively.
- Use the hand for Block, setup, or real damage while Orbs continue handling part of the charge-removal work.
- Once Slippery is gone, convert Orb scaling into the kill instead of continuing to build unnecessary infrastructure.
- Respect Dismember even when Orb output makes the opening phase feel easy.
Watch for
- Over-drafting low-output attacks specifically for Slippery when the existing Orb engine already handles it.
- Assuming passive charge removal means the 30-damage Dismember no longer needs a defensive plan.
Necrobinder has the most direct mechanic bypass: Doom does not need to deal ordinary damage through Slippery. A functioning Doom plan can therefore pressure or even kill Vantom without first spending nine normal damage instances removing the passive.
Prioritize
- Lean into Doom when the deck already has reliable application and enough survival to let the delayed damage resolve.
- Do not waste several weak attacks stripping Slippery if the established Doom plan already bypasses that requirement.
- Keep enough defense for Dismember while waiting for delayed damage to convert.
- If the deck is not actually a Doom deck, return to ordinary multi-hit or persistent-damage solutions instead of forcing the mechanic from scratch.
Watch for
- Forcing Doom solely because it bypasses Slippery when the deck has no reliable Doom engine.
- Assuming delayed lethal removes the need to survive the next Dismember.
Regent benefits from attacks and engines that create many individual hits. Against Vantom, frequency matters before peak damage, so a high-frequency line can clear Slippery quickly and then hand the fight back to the deck’s normal Sovereign Blade, Star, or other damage conversion plan.
Prioritize
- Use naturally high-frequency attacks to remove Slippery before committing the largest payoff.
- Avoid spending a heavily scaled single hit merely to consume one remaining early charge when smaller repeated hits are available.
- Use the Prepare turn to convert resources into damage rather than extending resource generation indefinitely.
- Once Slippery is gone, prioritize the deck’s strongest actual finisher rather than continuing to chase hit count.
Watch for
- Evaluating every attack only by its printed total damage while Slippery is active.
- Continuing to generate Stars or Forge value after enough resources already exist to end the fight.
Failure Analysis
Common Vantom Mistakes
These are the decisions that can make a deck look strong on paper but still fail this specific fight.
01
Opening with the biggest single hit
You spend a premium damage card immediately because its printed number is the highest in hand.
Why it fails
With Slippery active, that expensive attack may remove only one charge while dealing almost none of its intended damage.
Better decision
Strip Slippery with repeated low-cost damage instances first, then spend the large payoff once Vantom can take real damage.
02
Ignoring hit count when evaluating rewards
You reject a multi-hit option because its raw damage is lower than another attack.
Why it fails
Against Vantom, each hit can remove another Slippery charge. A temporary matchup-specific multi-hit can improve the Boss fight far more than its normal damage rating suggests.
Better decision
When Vantom is the upcoming Boss and the deck lacks another Slippery answer, give hit frequency real pick value.
03
Treating the fight as solved after Slippery breaks
Once the passive reaches zero, you spend the rest of the fight greedily on offense or setup.
Why it fails
Dismember still deals 30 on Ascension, adds Wounds, and Prepare adds Strength. The second half has a real damage and consistency clock of its own.
Better decision
Switch from Slippery management to normal Boss fundamentals: cover Dismember, maintain draw quality, and convert scaling into lethal.
04
Underestimating Wound pollution
You focus entirely on the 30 immediate damage and ignore the Status cards added by Dismember.
Why it fails
The first Wounds enter the discard pile and may not hurt immediately, which makes them easy to dismiss. After reshuffling, they replace real cards in exactly the later turns when Vantom has more Strength.
Better decision
Either finish before the Wounds cycle or preserve enough draw, discard, Exhaust, or other consistency to keep later hands functional.
05
Forcing a special counter when the deck already has one
You take a narrow anti-Vantom card even though Poison, Orbs, Shivs, Thorns, or another existing source already removes Slippery efficiently.
Why it fails
The matchup only needs one reliable answer to the opening passive. Additional narrow counters can weaken the deck after Vantom and reduce overall run quality.
Better decision
Add a specialized answer only when current hit frequency is genuinely inadequate. Otherwise strengthen the deck’s existing engine.
06
Greeding an upgrade at low HP
You enter Vantom low because the deck looks offensively strong and choose an upgrade over resting.
Why it fails
Dismember is a 30-damage Ascension check and early Slippery can delay lethal even for a strong deck. One awkward defensive draw can turn low HP into a lost run.
Better decision
If the deck lacks a reliable Dismember answer, treat HP as part of the Boss plan and rest when the buffer materially changes survival odds.
Entity Relationships
Appears In
1
encounter
Vantom
Boss
Game ID:
VANTOM
Data version:
v0.107.1 · Main
Type:
Boss