Door of Destinies 208 (Magic 2014 (M14))

As this artifact enters, choose a creature type. Whenever you cast a spell of the chosen type, put a charge counter on this artifact. Creatures you control of the chosen type get +1/+1 for each charge counter on this artifact.

NM - $15.20
LP - $12.20
MP - $9.10
HP - $6.10
DMG - $3.10