Eris, Roar of the Storm
From Outlaws of Thunder Junction Commander set
Eris, Roar of the Storm
Legendary Creature — Elemental Warlock
4/4
This spell costs
less to cast for each different mana value among instant and sorcery cards in your graveyard.
Flying, prowess
Whenever you cast your second spell each turn, create a 4/4 red Dragon Elemental creature token with flying and prowess.