Creature - Zombie Wizard
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 card would be put into your graveyard this turn, exile it instead.
Well now this is more like a red Snapcaster. Good thing is that if it survives combat you can do it again. I like it a lot. It's bad that it's not a Human, but whatever.
It can cast cantrips, Ancestral, Swords and discard spells (am I forgetting anything?), which makes him not that flexible, also his timing is limited so obviously not "red Snapcaster" so don't get attached to the comparison. I don't think there's any good way to up his power except Noble Hierarch or maybe a PW that gives power boost - none of which see much Vintage play.