Viktor, Warlock of the Void

Reach, Deathtouch
Whenever you cast an instant or sorcery spell, you may pay life equal to 2 + the converted mana cost of the spell. If you do you may copy the spell. If you activate this ability and a legendary artifact named Hammer of X'zzgal is equipped to Viktor, Warlock of the Void, exile them both and meld them into X'zzgal, Herald of the Void.