Big Freakin' Explosion (UR CR-MN 5/21)

Attack
Enhance Spend 1 momentum, mill 3: This attack gets +1 damage for each attack in your discard pile. If you milled 3 attacks this way, you lose health equal to half this attack's damage (rounded down) after it resolves. Ally - Ranged - Spell - Tech
Challenger: Critical Role Mighty Nein