Eris, Roar of the Storm

Eris, Roar of the Storm

Legendary Creature - Elemental Warlock | Power/Toughness: 4 / 4 (CMC 10)
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.