Commander's Sphere (Surge Foil) [Doctor Who] Forest Whenever a creature attacks enchanted

Whenever a creature attacks enchanted player

(You may cast a spell for its prowl cost if you dealt combat damage to a player this turn with a creature with any of its creature types

"On the fields of Trenzalore

Reverse Type: Creature — Vampire Knight Bloodsworn Knight's power and toughness are each equal to the number of creature cards in your graveyard

and library for any number of cards with the same name as that permanent and exile them

Commander's Sphere (Surge Foil) [Doctor Who] Forest Whenever a creature attacks enchantedSet: Doctor Who Type: Artifact Rarity: Common Cost: {3} {T}: Add one mana of any color in your commander's color identity. Sacrifice Commander's Sphere: Draw a card. "This is the Source. This is what you're fighting over. A device to rejuvenate a planet's ecosystem." The Tenth Doctor