Reverse the Polarity
Click the card to switch sides
Magic: The Gathering
Mana cost
Doctor WhoWHO · #659
- Card type
- Instant
- Rarity
- Rare
- Indicative price
- ★ 3.57 € · ★ 3.73 $
- Mana value
- 3
- Colour
- Blue
Card text
Choose one — • Counter all other spells. • Switch each creature's power and toughness until end of turn. • Creatures can't be blocked this turn.
Format legality
- CommanderLegal
- DuelLegal
- LegacyLegal
- OathbreakerLegal
- VintageLegal
Legalities follow the imported catalogue; check format rules before a tournament.
Data imported on 2026-10-06 (UTC).
Indicative Scryfall prices, updated daily. ★: foil; ★ E: etched foil. EUR and USD represent different markets.
Printing information
- Illustrator
- Randy Gallegos
- Card language
- English
- Release date
- 2023-10-13
Flavour text
"You see, before you reactivated it, I reversed the polarity of the neutron flow."
Rulings
Because damage remains marked on a creature until the cleanup step or an effect removes that damage, nonlethal damage dealt to a creature may become lethal if you switch its power and toughness during that turn.
Effects that switch a creature's power and toughness apply after all other effects, regardless of when those effects began to apply. For instance, if you switch a 2/4 creature's power and toughness and then give it +2/+0 later in the turn, it's a 4/4 creature, not a 6/2 creature.