Demogorgon, Mind Flayer

+1: Target Creature. Target Creature gets +1/1 for each Killer in play
+2: Target Artifact. Target Artifact gets 3 tokens. Spend those tokens to double the effect of target Artifact.
-5: Target opponent reveals 2 lands in their hand. For each type of land, add a +2/2 token to a Killer you control. Lands revealed are discarded.