Avi, Goose Adept

+1: Target player creates a colorless artifact token named Bell with "T: Ring this bell. (This ability does nothing.)"
-2: Create a colorless artifact token named "Nail Bat" with "T, Sacrifice this artifact: Deal 1d6 damage to target creature."
-6: Search your sideboard for a card named Goose Guardians and exile it. As long as it remains exiled, you may cast it without paying its mana cost.