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 |
|---|---|---|---|
| Ardoz, Cobbler of War | 1R | Legendary Creature — Goblin Shaman | Haste Whenever Ardoz, Cobbler of War or another creature enters the battlefield under your control, that creature gets +2/+0 until end of turn. {3}{R}: Create a 1/1 red Goblin creature token with haste. Activate only as a sorcery. 1/1 |
| Squandered Resources | BG | Enchantment | Sacrifice a land: Add one mana of any type the sacrificed land could produce. |
| Rohgahh of Kher Keep | 2BBRR | Legendary Creature — Kobold | At the beginning of your upkeep, you may pay {R}{R}{R}. If you don't, tap Rohgahh of Kher Keep and all creatures named Kobolds of Kher Keep, then an opponent gains control of them. Creatures you control named Kobolds of Kher Keep get +2/+2. 5/5 |
| Offender at Large | 4R | Creature — Giant Rogue | Disguise {4}{R} (You may cast this card face down for {3} as a 2/2 creature with ward {2}. Turn it face up any time for its disguise cost.) When Offender at Large enters the battlefield or is turned face up, up to one target creature gets +2/+0 until end of turn. 5/4 |
| Neck Breaker | Creature — Werewolf | Attacking creatures you control get +1/+0 and have trample. At the beginning of each upkeep, if a player cast two or more spells last turn, transform Neck Breaker. 4/3 | |
| Confiscation Coup | 3UU | Sorcery | Choose target artifact or creature. You get {E}{E}{E}{E} (four energy counters), then you may pay an amount of {E} equal to that permanent's mana value. If you do, gain control of it. |
| Rally Maneuver | 2W | Instant | Target creature gets +2/+0 and gains first strike until end of turn. Up to one other target creature gets +0/+2 and gains lifelink until end of turn. |
| Tegan Jovanka | 2W | Legendary Creature — Human | Brave Heart — Whenever you attack, target attacking historic creature gets +1/+1 and gains indestructible until end of turn. (Artifacts, legendaries, and Sagas are historic.) Doctor's companion (You can have two commanders if the other is the Doctor.) 2/2 |
| Mana Geyser | 3RR | Sorcery | Add {R} for each tapped land your opponents control. |
| Dega Sanctuary | 2W | Enchantment | At the beginning of your upkeep, if you control a black or red permanent, you gain 2 life. If you control a black permanent and a red permanent, you gain 4 life instead. |