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 |
|---|---|---|---|
| Battle-Rattle Shaman | 3R | Creature — Goblin Shaman | At the beginning of combat on your turn, you may have target creature get +2/+0 until end of turn. 2/2 |
| Touch of the Eternal | 5WW | Enchantment | At the beginning of your upkeep, count the number of permanents you control. Your life total becomes that number. |
| Ob Nixilis's Cruelty | 2B | Instant | Target creature gets -5/-5 until end of turn. If that creature would die this turn, exile it instead. |
| Ancient Runes | 2R | Enchantment | At the beginning of each player's upkeep, Ancient Runes deals damage to that player equal to the number of artifacts they control. |
| Magnify | G | Instant | All creatures get +1/+1 until end of turn. |
| Archpriest of Iona | W | Creature — Human Cleric | Archpriest of Iona's power is equal to the number of creatures in your party. (Your party consists of up to one each of Cleric, Rogue, Warrior, and Wizard.) At the beginning of combat on your turn, if you have a full party, target creature gets +1/+1 and gains flying until end of turn. */2 |
| Disease Carriers | 2BB | Creature — Rat | When Disease Carriers dies, target creature gets -2/-2 until end of turn. 2/2 |
| Gift of Growth | 1G | Instant | Kicker {2} (You may pay an additional {2} as you cast this spell.) Untap target creature. It gets +2/+2 until end of turn. If this spell was kicked, that creature gets +4/+4 until end of turn instead. |
| Chupacabra Echo | 2BB | Creature — Beast Horror Spirit | Fathomless descent — When Chupacabra Echo enters the battlefield, target creature an opponent controls gets -X/-X until end of turn, where X is the number of permanent cards in your graveyard. 3/2 |
| Deadly Dancer | Creature — Vampire | Trample When this creature transforms into Deadly Dancer, add {R}{R}. Until end of turn, you don't lose this mana as steps and phases end. {R}{R}: Deadly Dancer and another target creature each get +1/+0 until end of turn. 3/3 |