Leadership
Event
Cost: 2.
Resource:

Max 1 per round.

Hero Action: Each guardian character gets +2 THW and +2 ATK this phase. At the end of the phase, deal 1 damage to each guardian character.

Star-Lord #15.
Blaze of Glory
Reviews

Absolutely made for Star-Lord in that you can pack a bunch of non-Guardian allies, give them the Guardian trait through your Hero form's constant ability, play this, get your value, and then hop into Alter-Ego, avoiding the end-of-phase damage!

Alatreon · 114