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 |
|---|---|---|---|
| Rubblebelt Maaka | 3R | Creature — Cat | Bloodrush — {R}, Discard Rubblebelt Maaka: Target attacking creature gets +3/+3 until end of turn. 3/3 |
| Putrid Cyclops | 2B | Creature — Zombie Cyclops | When Putrid Cyclops enters the battlefield, scry 1, then reveal the top card of your library. Putrid Cyclops gets -X/-X until end of turn, where X is that card's mana value. (To scry 1, look at the top card of your library, then you may put that card on the bottom of your library.) 3/3 |
| One-Clown Band | 1R | Artifact Creature — Clown Robot Bard | {2}{R}: Target Robot gets +2/+0 until end of turn. 1/3 |
| Sardian Avenger | 1R | Creature — Goblin Warrior | First strike, trample Whenever Sardian Avenger attacks, it gets +X/+0 until end of turn, where X is the number of artifacts your opponents control. Whenever an artifact an opponent controls is put into a graveyard from the battlefield, Sardian Avenger deals 1 damage to that player. 1/1 |
| Destructive Flow | BRG | Enchantment | At the beginning of each player's upkeep, that player sacrifices a nonbasic land. |
| Zhur-Taa Swine | 3RG | Creature — Boar | Bloodrush — {1}{R}{G}, Discard Zhur-Taa Swine: Target attacking creature gets +5/+4 until end of turn. 5/4 |
| Spinning Wheel | 3 | Artifact | {T}: Add one mana of any color. {5}, {T}: Tap target creature. |
| Cramped Bunker | 4RG | Enchantment | At the beginning of each opponent's upkeep, that player moves a permanent they control to touch Cramped Bunker and no other permanents. If the player can't, destroy each permanent they control that isn't touching Cramped Bunker, then sacrifice it. |
| Corrosion | 1BR | Enchantment | Cumulative upkeep {1} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) At the beginning of your upkeep, put a rust counter on each artifact target opponent controls. Then destroy each artifact with mana value less than or equal to the number of rust counters on it. Artifacts destroyed this way can't be regenerated. When Corrosion leaves the battlefield, remove all rust counters from all permanents. |
| Crown of Vigor | 1G | Enchantment — Aura | Enchant creature Enchanted creature gets +1/+1. Sacrifice Crown of Vigor: Enchanted creature and other creatures that share a creature type with it get +1/+1 until end of turn. |