Card Codex

M:tG card similarity search

17 May 2024: Card library updated.

Reverse Polarity

WW · Instant

You gain X life, where X is twice the damage dealt to you so far this turn by artifacts.

Similar cards

Color identity:
NameManaTypeText
Havoc Eater 5RRCreature — Elemental Flying When Havoc Eater enters the battlefield, for each opponent, goad up to one target creature that opponent controls. Put X +1/+1 counters on Havoc Eater, where X is the total power of creatures goaded this way. 3/3
Court of Embereth 2RREnchantment When Court of Embereth enters the battlefield, you become the monarch. At the beginning of your upkeep, create a 3/1 red Knight creature token. Then if you're the monarch, Court of Embereth deals X damage to each opponent, where X is the number of creatures you control.
Entrancing Melody XUUSorcery Gain control of target creature with mana value X.
Cinder Seer 3RCreature — Human Wizard {2}{R}, {T}: Reveal any number of red cards in your hand. Cinder Seer deals X damage to any target, where X is the number of cards revealed this way. 1/1
Eliminate the Competition 4BSorcery As an additional cost to cast this spell, sacrifice X creatures. Destroy X target creatures.
Subdue GInstant Prevent all combat damage that would be dealt by target creature this turn. That creature gets +0/+X until end of turn, where X is its mana value.
Mount Velus Manticore 2RREnchantment Creature — Manticore At the beginning of combat on your turn, you may discard a card. When you do, Mount Velus Manticore deals X damage to any target, where X is the number of card types the discarded card has. 3/4
Ovika, Enigma Goliath 5URLegendary Creature — Phyrexian Nightmare Flying Ward—{3}, Pay 3 life. Whenever you cast a noncreature spell, create X 1/1 red Phyrexian Goblin creature tokens, where X is the mana value of that spell. They gain haste until end of turn. 6/6
Heroes' Bane 3GGCreature — Hydra Heroes' Bane enters the battlefield with four +1/+1 counters on it. {2}{G}{G}: Put X +1/+1 counters on Heroes' Bane, where X is its power. 0/0
Korvold, Gleeful Glutton 5BRGLegendary Creature — Dragon Noble This spell costs {1} less to cast for each card type among permanents you've sacrificed this turn. Flying, trample, haste Whenever Korvold deals combat damage to a player, put X +1/+1 counters on Korvold and draw X cards, where X is the number of permanent types among cards in your graveyard. 4/4
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