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
A-Minsc & Boo, Timeless Heroes 3RGLegendary Planeswalker — Minsc When Minsc & Boo, Timeless Heroes enters the battlefield and at the beginning of your upkeep, if you don't control a creature named Boo, create Boo, a legendary 1/1 red Hamster creature token with trample and haste. [+1]: Put three +1/+1 counters on up to one target creature with trample or haste. [−2]: Sacrifice a creature. When you do, Minsc & Boo, Timeless Heroes deals X damage to any target, where X is that creature's power. If the sacrificed creature was a Hamster, draw X cards. Loyalty 3
Krakilin XGGCreature — Beast Krakilin enters the battlefield with X +1/+1 counters on it. {1}{G}: Regenerate Krakilin. 0/0
Cavalier of Flame 2RRRCreature — Elemental Knight {1}{R}: Creatures you control get +1/+0 and gain haste until end of turn. When Cavalier of Flame enters the battlefield, discard any number of cards, then draw that many cards. When Cavalier of Flame dies, it deals X damage to each opponent and each planeswalker they control, where X is the number of land cards in your graveyard. 6/5
Cybermat 2Artifact Creature — Robot Skulk (This creature can't be blocked by creatures with greater power.) Whenever Cybermat attacks and isn't blocked, it gets +X/+0 until end of turn, where X is the number of attacking artifact creatures. 2/1
Accessories to Murder Artifact — Contraption Whenever you crank Accessories to Murder, target creature gets +X/+0 until end of turn, where X is the number of creatures you control.
Loot, the Key to Everything GURLegendary Creature — Beast Noble Ward {1} At the beginning of your upkeep, exile the top X cards of your library, where X is the number of card types among other nonland permanents you control. You may play those cards this turn. 1/2
Wave of Indifference XRSorcery X target creatures can't block this turn.
Appeal GSorcery Until end of turn, target creature gains trample and gets +X/+X, where X is the number of creatures you control.
Pernicious Deed 1BGEnchantment {X}, Sacrifice Pernicious Deed: Destroy each artifact, creature, and enchantment with mana value X or less.
Candles' Glow 1WInstant — Arcane Prevent the next 3 damage that would be dealt to any target this turn. You gain life equal to the damage prevented this way. Splice onto Arcane {1}{W} (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)
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