Deatrix, Dead Necromancer

+2: Create a token copy of target card in any graveyard, except it's a skeleton in addition to it's other types, and has one +1/+1 counter.
-X: Create X creature tokens that are each copies of cards in graveyards, except they are a skeleton in addition to their other types with menace.
-10: Destroy every non skeleton creature and create tokens that are copies of all of them, except they are skeletons in addition to their other types.