Reverse the Polarity

Reverse the Polarity card image

Reverse the Polarity: Instant, Doctor Who. Choose one - • Counter all other spells. Printings, market prices, rulings, and format legality on Mana Grove.

Mana cost
{1}{U}{U}
Mana value
3
Type
Instant
Colour identity
Blue (U)
Rarity
Rare
Set
Doctor Who (WHO)
Released
2023-10-13
Collector number
54
Artist
Randy Gallegos
Commander rank
4,993 (by how often it appears in Commander decks)

Build around this card with Grover

About Reverse the Polarity

Reverse the Polarity is a Magic: The Gathering card, a rare blue instant from Doctor Who (WHO), a Commander product released in October 2023. It is collector number 54 in that set, with art by Randy Gallegos. It costs {1}{U}{U} (one generic and two blue mana) to cast, for a mana value of 3. Its colour identity is blue. It is legal in Legacy, Vintage, Commander, Duel Commander and Oathbreaker. Doctor Who is its only printing so far. The latest aggregated market price for this printing is $1.07 (normal finish, as of 2026-11-12).

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.

"You see, before you reactivated it, I reversed the polarity of the neutron flow."

Market price

Latest aggregated market price for the normal finish of this printing: $1.07 (as of 2026-11-12).

The figure covers this printing only; other printings carry their own price on their own page.

Format legality

Legality of Reverse the Polarity by format. Formats in which it is not legal are not listed.

LegacyLegal
VintageLegal
CommanderLegal
Duel CommanderLegal
OathbreakerLegal

Other printings of Reverse the Polarity

The other printings are listed newest first, with the rarity and release year of each.

PrintingRarityYear
Doctor Who (WHO) #369Rare2023
Doctor Who (WHO) #659Rare2023
Doctor Who (WHO) #960Rare2023

Official rulings

Two official rulings apply to Reverse the Polarity, newest first.

  • 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.
  • 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.

Similar cards

Other instant cards with a blue colour identity, ranked by how often they appear in Commander decks.

In these precons

Reverse the Polarity is in the decklist of these preconstructed Commander decks.

In these card lists

These card lists include Reverse the Polarity.

Explore Mana Grove