Reverse the Polarity 
Instant
$0.48 #5135 0.30 3.0 years
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• Counter all other spells.
• Switch each creature's power and toughness until end of turn.
• Creatures can't be blocked this turn.
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Cards similar to Reverse the Polarity expected a card that isn't here?
Reports become test cases the matcher is graded against before an update ships. Delvefall isn't a chatbot guessing, it compares the printed rules text of every card with plain math, and examples like yours decide which differences should count.
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Heritage Reclamation77%
$0.37↓#2599↑0.12↓1.5 years↓
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Pick Your Poison77%
$0.24↓#3167↑0.252.7 years
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Rally the Monastery76%
$0.24↓#12405↓0.00↓1.5 years↓
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You Come to the Gnoll Camp76%
$0.21↓#18156↓0.00↓5.2 years↑
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Pawpatch Formation76%
$0.32↓#45020.02↓2.2 years
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Sheoldred's Edict74%
$1.16↑#1150↑0.52↑3.7 years
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Thraben Charm74%
$0.40↓#3091↑0.222.3 years
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Glorious Decay74%
$0.15↓#13913↓0.12↓0.5 years↓
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Life of Toshiro Umezawa // Memory of Toshiro73%
$0.24↓#17628↓0.00↓4.7 years↑
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