Marvel United
How many cards does the Heroic challenge remove from each Hero's deck?
The rulebook Challenges section sets the removal, and two forum replies confirm the cards removed.
- Marvel United rulebook · Rulebook · Challenges
- peakhope · Community · 2021-04-18
- BoardGameBeacon · Community · 2021-04-18
Both cards the challenge names for that Hero, typically a single Wild and a double Wild, so each deck drops to 10 cards. Heroes with a bonus Wild keep it.