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 |
|---|---|---|---|
| Lys Alana Scarblade | 2B | Creature — Elf Assassin | {T}, Discard an Elf card: Target creature gets -X/-X until end of turn, where X is the number of Elves you control. 1/1 |
| Cabal Conditioning | 6B | Sorcery | Any number of target players each discard a number of cards equal to the highest mana value among permanents you control. |
| Outrage Shaman | 3RR | Creature — Goblin Shaman | Chroma — When Outrage Shaman enters the battlefield, it deals damage to target creature equal to the number of red mana symbols in the mana costs of permanents you control. 2/2 |
| Hornet Harasser | 2BB | Creature — Goblin Shaman | When Hornet Harasser dies, target creature gets -2/-2 until end of turn. 2/2 |
| Golden Demise | 1BB | Sorcery | Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.) All creatures get -2/-2 until end of turn. If you have the city's blessing, instead only creatures your opponents control get -2/-2 until end of turn. |
| Hideous Laughter | 2BB | Instant — Arcane | All creatures get -2/-2 until end of turn. Splice onto Arcane {3}{B}{B} (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.) |
| Scent of Nightshade | 1B | Instant | Reveal any number of black cards in your hand. Target creature gets -X/-X until end of turn, where X is the number of cards revealed this way. |
| Necrotic Wound | B | Instant | Undergrowth — Target creature gets -X/-X until end of turn, where X is the number of creature cards in your graveyard. If that creature would die this turn, exile it instead. |
| Wild Might | 1G | Instant | Target creature gets +1/+1 until end of turn. That creature gets an additional +4/+4 until end of turn unless any player pays {2}. |
| Inner Calm, Outer Strength | 2G | Instant — Arcane | Target creature gets +X/+X until end of turn, where X is the number of cards in your hand. |