M:tG card similarity search
3R · Enchantment
At the beginning of each upkeep, count the number of permanents. If the number is odd, until end of turn, red creatures get +1/+1 and whenever a player taps a Mountain for mana, that player adds an additional {R}. If the number is even, until end of turn, red creatures get -1/-1 and if a player taps a Mountain for mana, that Mountain produces colorless mana instead of any other type.
| Name | Mana | Type | Text |
|---|---|---|---|
| Karma | 2WW | Enchantment | At the beginning of each player's upkeep, Karma deals damage to that player equal to the number of Swamps they control. |
| Crypt Ghast | 3B | Creature — Spirit | Extort (Whenever you cast a spell, you may pay {W/B}. If you do, each opponent loses 1 life and you gain that much life.) Whenever you tap a Swamp for mana, add an additional {B}. 2/2 |
| Dreamspoiler Witches | 3B | Creature — Faerie Wizard | Flying Whenever you cast a spell during an opponent's turn, you may have target creature get -1/-1 until end of turn. 2/2 |
| Misunderstood Trapeze Elf | Stickers | {TK}{TK} — Whenever you cast a spell, this creature gets +X/+X until end of turn, where X is the amount of generic mana in that spell's mana cost. {TK}{TK}{TK} — Hexproof {TK}{TK} — 4/2 {TK}{TK}{TK}{TK} — 6/6 | |
| Briar Patch | 1GG | Enchantment | Whenever a creature attacks you, it gets -1/-0 until end of turn. |
| Cabal Torturer | 1BB | Creature — Human Minion | {B}, {T}: Target creature gets -1/-1 until end of turn. Threshold — {3}{B}{B}, {T}: Target creature gets -2/-2 until end of turn. Activate only if seven or more cards are in your graveyard. 1/1 |
| Yahenni's Expertise | 2BB | Sorcery | All creatures get -3/-3 until end of turn. You may cast a spell with mana value 3 or less from your hand without paying its mana cost. |
| Elven Palisade | G | Enchantment | Sacrifice a Forest: Target attacking creature gets -3/-0 until end of turn. |
| Acornelia, Fashionable Filcher | 3B | Legendary Creature — Squirrel | Whenever you cast a spell with a squirrel in its art, you get {A} (an acorn counter). Whenever a Squirrel you control enters the battlefield or dies, you get {A}. {2}{B}, Pay X {A}: Target creature gets -X/-X until end of turn. {G}, Pay X {A}: Target creature gets +X/+X until end of turn. 3/3 |
| Boon of Boseiju | 1G | Instant | Target creature gets +X/+X until end of turn, where X is the greatest mana value among permanents you control. Untap it. |