Pollyanna, of Polybellum

Bestow {1}{w}{u}{g} (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)
Polyanna, of Polybellum and creatures it enchants get -3/+3 and have "at the beginning of each upkeep, each player who controls a creature with negative power draws a card."