Mage

Blur - {u}: Target creature gets +0/+2 until
end of turn.
Curse - {b}: Target creature gets -2/-0 until
end of turn
Magic Fist - {1}{w}: Deal 2 damage to target creature.
Poison {dash} {1}{b}: Target creature gains "At the beginning of each upkeep get -1/-1 until end of turn".
Raise Skeletons {3}{b}: Exile target creature from your graveyard. Then create {x} 1/1 black skeleton creature tokens equal to that creature's toughness.