Poison the Cup is really strong. Every other 2-mana "destroy target creature" at instant speed has some limitation to it--converted mana cost 2 or less, cmc 3 or less, must be a particular color, cannot be a a certain color, cmc <= number of cards in its controller's graveyard, you must sacrifice a creature or pay life, etc. This one just kills the target for 2 mana with no restrictions and you get to scry 2 for doing so.
edit/add: I forgot Terminate--it is 2-mana destroy target creature with no restriction, so one precedent.
That spirit boaster is strong in limited, but at uncommon it's fine
Poison the cup is a way better murder
Private Mod Note
Rollback Post to RevisionRollBack
How i feel about competitive players and casual players in EDH: The competitive are german tourists, the casual are italian tourists, both in a italian beach. The italians asking themselves "why are the germans here?" make a legitimate question, the answer is because the beach is beautiful, no matter the country you came from. The italians wanting to ban the germans are dumb, because if the germans pay for their stay and follow the rules like everyone else, they have the right to be in the beach. Hovewer, if the germans started to ask themselves "why are the italians here?"... they would be dumb as hell.