Reverse the Polarity
Instant
WHODoctor Who#54rare
Foil
"You see, before you reactivated it, I reversed the polarity of the neutron flow."
- Border
- black
- Security stamp
- triangle
- Frame
- 2015
- Pull rate
- about 1 per booster–1 in 145
- Illustrator
- Randy Gallegos
- Found in
- Doctor Who Commander Deck Blast From the Past · Doctor Who Collector Booster Pack
CommanderLegalModernNot legalStandardNot legal
Format legality
AlchemyNot legal
BrawlNot legal
CommanderLegal
Competitive BrawlNot legal
DuelLegal
Future StandardNot legal
GladiatorNot legal
HistoricNot legal
LegacyLegal
ModernNot legal
OathbreakerLegal
Old SchoolNot legal
PauperNot legal
Pauper CommanderNot legal
PennyNot legal
PioneerNot legal
PreDHNot legal
PremodernNot legal
StandardNot legal
Standard BrawlNot legal
TimelessNot legal
Tiny LeadersLegal
VintageLegal
Choose one —
• Counter all other spells.
• Switch each creature's power and toughness until end of turn.
• Creatures can't be blocked this turn.
Plays as: Modal Spell
Market · per finishspark updated 4h ago · prices as of 2026-07-12
Nonfoil-12.0%
$0.44
$0.20 low$0.01 gap
Foil+0.0%
$2.29
$2.00 low$1.10 gap
Finish
Market
Δ 7D · Trend
Low
Buylist
Buy / Sell Gap
Nonfoil
$0.44as of 2026-07-12
-12.0%
H $1.95L $0.27since Feb 2024$0.20
$0.19
$0.01+5% · normal spread
VenuesHide venues
Low: tcgplayer
Buylist: cardkingdom
Foil
$2.29as of 2026-07-12
+0.0%
H $5.61L $2.01since Feb 2024$2.00
$0.90
$1.10+55% · normal spread
VenuesHide venues
Low: tcgplayer
Buylist: cardkingdom
Cheapest playable copy$0.44· across 4 printings
Rulings
2 · latest Oct 13, 2023 · one tap opens all
- WotCOct 13, 2023
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.
- WotCOct 13, 2023
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.