Reverse the Polarity (Extended Art) (Surge Foil) [Doctor Who] Dragons of Tarkir Prerelease Promos Set: Invasion Type: Creature —

Set: Invasion Type: Creature — Wurm Rarity: Uncommon Cost: {3}{B} {2}{R}

and no one will mourn

but a player must discard a card they've already collected to draft a card from the back of the line

Set: Limited Edition Beta Type: Enchantment — Aura Rarity: Rare Cost: {G} Enchant artifact

Set: Battle for Zendikar Tokens Type: Token Creature — Dragon Rarity: Common Flying

Reverse the Polarity (Extended Art) (Surge Foil) [Doctor Who] Dragons of Tarkir Prerelease Promos Set: Invasion Type: Creature —Set: Doctor Who Type: Instant Rarity: Rare Cost: {1}{U}{U} Choose one Counter all other spells. Switch each creature's power and toughness until end of turn. Creatures can't be blocked this turn. You see, before you reactivated it, I reversed the polarity of the neutron flow.