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
Proft's Eidetic Memory 1ULegendary Enchantment When Proft's Eidetic Memory enters the battlefield, draw a card. You have no maximum hand size. At the beginning of combat on your turn, if you've drawn more than one card this turn, put X +1/+1 counters on target creature you control, where X is the number of cards you've drawn this turn minus one.
Palantír of Orthanc 3Legendary Artifact At the beginning of your end step, put an influence counter on Palantír of Orthanc and scry 2. Then target opponent may have you draw a card. If that player doesn't, you mill X cards, where X is the number of influence counters on Palantír of Orthanc, and that player loses life equal to the total mana value of those cards.
Hail of Arrows XWInstant Hail of Arrows deals X damage divided as you choose among any number of target attacking creatures.
Slight Malfunction 1RSorcery Choose one — • Destroy target artifact. • Roll a six-sided die. When you do, Slight Malfunction deals 1 damage to each of up to X target creatures, where X is the result.
Nostalgic Dreams GGSorcery As an additional cost to cast this spell, discard X cards. Return X target cards from your graveyard to your hand. Exile Nostalgic Dreams.
Endless One XCreature — Eldrazi Endless One enters the battlefield with X +1/+1 counters on it. 0/0
Murder Investigation 1WEnchantment — Aura Enchant creature you control When enchanted creature dies, create X 1/1 white Soldier creature tokens, where X is its power.
Builder's Bane XXRSorcery Destroy X target artifacts. Builder's Bane deals damage to each player equal to the number of artifacts they controlled that were put into a graveyard this way.
Time Machine 5Artifact {T}: Exile Time Machine and target nontoken creature you own. Return them to the battlefield at the beginning of your upkeep on your turn X in the next game you play with one of your opponents in this game, where X is the mana value of the exiled creature.
Viridian Lorebearers 3GCreature — Elf Shaman {3}{G}, {T}: Target creature gets +X/+X until end of turn, where X is the number of artifacts your opponents control. 3/3
Page 60