Card Codex

M:tG card similarity search

17 May 2024: Card library updated.

Reverse the Polarity

1UU · Instant

Choose one — • Counter all other spells. • Switch each creature's power and toughness until end of turn. • Creatures can't be blocked this turn.

Similar cards

Color identity:
NameManaTypeText
Brand of Ill Omen 3REnchantment — Aura Enchant creature Cumulative upkeep {R} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) Enchanted creature's controller can't cast creature spells.
Nemesis Mask 3Artifact — Equipment All creatures able to block equipped creature do so. Equip {3} ({3}: Attach to target creature you control. Equip only as a sorcery. This card enters the battlefield unattached and stays on the battlefield if the creature leaves.)
Amplifire 2RRCreature — Elemental At the beginning of your upkeep, reveal cards from the top of your library until you reveal a creature card. Until your next turn, Amplifire's base power becomes twice that card's power and its base toughness becomes twice that card's toughness. Put the revealed cards on the bottom of your library in a random order. 1/1
Snuff Out 3BInstant If you control a Swamp, you may pay 4 life rather than pay this spell's mana cost. Destroy target nonblack creature. It can't be regenerated.
Rootless Yew 3GGCreature — Treefolk When Rootless Yew dies, search your library for a creature card with power or toughness 6 or greater, reveal it, put it into your hand, then shuffle. 5/4
Cytoshape 1GUInstant Choose a nonlegendary creature on the battlefield. Target creature becomes a copy of that creature until end of turn.
Ood Sphere Plane — Horsehead Nebula Song of the Ood — Noncreature spells have convoke. (A player's creatures can help cast those spells. Each creature they tap while casting a noncreature spell pays for {1} or one mana of that creature's color.) Red-Eye — Whenever chaos ensues, for each opponent, goad up to one target creature that opponent controls. Until your next turn, those creatures can't become tapped unless they're being declared as attackers.
Archon's Glory WInstant Bargain (You may sacrifice an artifact, enchantment, or token as you cast this spell.) Target creature gets +2/+2 until end of turn. If this spell was bargained, that creature also gains flying and lifelink until end of turn.
Slinking Giant 2RRCreature — Giant Rogue Wither (This deals damage to creatures in the form of -1/-1 counters.) Whenever Slinking Giant blocks or becomes blocked, it gets -3/-0 until end of turn. 4/4
Blackmail BSorcery Target player reveals three cards from their hand and you choose one of them. That player discards that card.
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