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
Elvish Mariner 2UCreature — Elf Pilot Whenever Elvish Mariner attacks, scry 1. Whenever you scry, tap up to X target nonland permanents, where X is the number of cards looked at while scrying this way. 3/2
Voja, Jaws of the Conclave 2RGWLegendary Creature — Wolf Vigilance, trample, ward {3} Whenever Voja, Jaws of the Conclave attacks, put X +1/+1 counters on each creature you control, where X is the number of Elves you control. Draw a card for each Wolf you control. 5/5
Moorland Rescuer 5WCreature — Human Knight When Moorland Rescuer dies, return any number of other creature cards with total power X or less from your graveyard to the battlefield, where X is Moorland Rescuer's power. Exile Moorland Rescuer. 4/4
Ivy Elemental XGCreature — Elemental Ivy Elemental enters the battlefield with X +1/+1 counters on it. 0/0
Shining Shoal XWWInstant — Arcane You may exile a white card with mana value X from your hand rather than pay this spell's mana cost. The next X damage that a source of your choice would deal to you and/or creatures you control this turn is dealt to any target instead.
Body of Research GGGUUUSorcery Create a 0/0 green and blue Fractal creature token. Put X +1/+1 counters on it, where X is the number of cards in your library.
Hamletback Goliath 6RCreature — Giant Warrior Whenever another creature enters the battlefield, you may put X +1/+1 counters on Hamletback Goliath, where X is that creature's power. 6/6
Spell Swindle 3UUInstant Counter target spell. Create X Treasure tokens, where X is that spell's mana value. (They're artifacts with "{T}, Sacrifice this artifact: Add one mana of any color.")
Worldsoul Colossus XGWCreature — Elemental Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Worldsoul Colossus enters the battlefield with X +1/+1 counters on it. 0/0
Bag of Devouring BArtifact Whenever you sacrifice another nontoken artifact or creature, exile it. {2}, {T}, Sacrifice another artifact or creature: Draw a card. {3}, {T}, Sacrifice Bag of Devouring: Roll a d10. Return up to X cards from among cards exiled with Bag of Devouring to their owners' hands, where X is the result.
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