Xavier, Storm of Unlife

This spell costs {2} 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.

"The dead all rise to my call, as my master's guidance intended... They all beckon for revenge... And their icy gaze is on... You..."