Reverse the Polarity (Surge Foil) [Doctor Who] Cat Artificer Set: Commander Masters Type: Creature

Set: Commander Masters Type: Creature — Human Cleric Rarity: Rare Cost: {W}{W} During your turn

The directors of the Riptide Project wanted instant results on the sliver experiments

create X of those tokens instead

double target creature's power until end of turn

Reverse Type: Token Creature — Shark Flying

Reverse the Polarity (Surge Foil) [Doctor Who] Cat Artificer Set: Commander Masters Type: CreatureSet: 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.