Dreadhorde Arcanist [War of the Spark]

Description

Set:	War of the Spark
Type:	Creature — Zombie Wizard
Rarity:	Rare
Cost:	{1}{R}

Trample
Whenever Dreadhorde Arcanist attacks, you may cast target instant or sorcery card with converted mana cost less than or equal to Dreadhorde Arcanist's power from your graveyard without paying its mana cost. If that spell would be put into your graveyard this turn, exile it instead.