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 |
|---|---|---|---|
| Talonrend | 4U | Creature — Elemental | Flying {U/R}: Talonrend gets +1/-1 until end of turn. 0/5 |
| Mystic Barrier | 4W | Enchantment | When Mystic Barrier enters the battlefield or at the beginning of your upkeep, choose left or right. Each player may attack only the nearest opponent in the last chosen direction and planeswalkers controlled by that opponent. |
| Dread Slag | 3BR | Creature — Horror | Trample Dread Slag gets -4/-4 for each card in your hand. 9/9 |
| Holga, Relentless Rager | 4RR | Legendary Creature — Human Barbarian | Haste Holga, Relentless Rager must be blocked if able. Whenever Holga attacks, each creature you control attacking a player gets +1/+0 until end of turn for each creature that player controls. 4/6 |
| Red Scarab | W | Enchantment — Aura | Enchant creature Enchanted creature can't be blocked by red creatures. Enchanted creature gets +2/+2 as long as an opponent controls a red permanent. |
| Chitinous Cloak | 3 | Artifact — Equipment | Equipped creature gets +2/+2 and has menace. (It can't be blocked except by two or more creatures.) Equip {3} |
| Call to the Grave | 4B | Enchantment | At the beginning of each player's upkeep, that player sacrifices a non-Zombie creature. At the beginning of the end step, if no creatures are on the battlefield, sacrifice Call to the Grave. |
| Duplication Device | Artifact — Contraption | Whenever you crank Duplication Device, until end of turn, target creature becomes a copy of any creature on the battlefield, except it's an artifact in addition to its other types. | |
| Ambuscade Shaman | 2B | Creature — Orc Shaman | Whenever Ambuscade Shaman or another creature enters the battlefield under your control, that creature gets +2/+2 until end of turn. Dash {3}{B} (You may cast this spell for its dash cost. If you do, it gains haste, and it's returned from the battlefield to its owner's hand at the beginning of the next end step.) 2/2 |
| Renounce | 1W | Instant | Sacrifice any number of permanents. You gain 2 life for each permanent sacrificed this way. |