Soul Fysh
Regent can attack the Status problem instead of only drawing through it
Soul Fysh can pollute the deck with Status cards and make important turns inconsistent. Regent has access to transformation-style answers such as Charge, Be Gone, and sometimes Guards, while card generation can also keep useful actions flowing when normal draws become worse.
When the enemy attacks draw quality, I value cards that restore functional hands even if they do not directly increase Star or Forge scaling.
Young Glass
Tyranny can be worth more than another damage payoff
Young Glass is a severe damage and consistency check. Tyranny can improve draw while giving Regent a way to remove unwanted cards from hand, which is particularly useful when Status cards begin interfering with the deck.
A mature damage engine still loses if the deck cannot find the right cards. Against heavy draw disruption, consistency can become the strongest form of scaling.
Long setup fight
This is where Forge has time to compound
When the enemy gives me safe early turns, Sovereign Blade investment becomes more attractive because each setup action has time to repay itself before the dangerous part of the fight.
The same Forge card is much stronger when the encounter gives me time to invest before demanding maximum output.
Fast hallway or elite
A future 100-damage sword does not solve turn two
If enemies are already costing too much HP before the engine develops, I stop valuing only the final Blade or Star ceiling. Immediate damage, Block, or a faster conversion matters more.
Regent needs enough frontload to reach the part of the run where his scaling becomes impressive.
Status-heavy late fight
Card generation can protect the whole engine
When the draw pile itself becomes unreliable, generating additional playable cards can keep Regent functioning even when normal draw quality falls. That can preserve both Star and Sovereign Blade plans without adding another dedicated payoff.
Sometimes the best support card is the one that makes sure the engine still gets a turn.