Deadpool
When Destroyed: Return this to your hand with double the Power.
Hela
On Reveal: For each different Cost among them, resurrect a card you discarded to a random location.
Omega Red
Ongoing: If you're winning here, +3 Power to other locations.
Surge
On Reveal: Give the top card of your deck -1 Cost and +1 Power. After you play it, repeat this ability.
Symbiote Spider-Man
Activate: Merge your lowest-Cost card here into this. Copy its text like it just revealed.
Wolfsbane
On Reveal: +2 Power for each other card you have here.