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 |
|---|---|---|---|
| Brood Keeper | 3R | Creature — Human Shaman | Whenever an Aura becomes attached to Brood Keeper, create a 2/2 red Dragon creature token with flying. It has "{R}: This creature gets +1/+0 until end of turn." 2/3 |
| Diamond Faerie | 2GWU | Snow Creature — Faerie | Flying {1}{S}: Snow creatures you control get +1/+1 until end of turn. ({S} can be paid with one mana from a snow source.) 3/3 |
| Sylvok Explorer | 1G | Creature — Human Druid | {T}: Add one mana of any color that a land an opponent controls could produce. 1/1 |
| Boarded Window | 3 | Artifact | Creatures attacking you get -1/-0. At the beginning of each end step, if you were dealt 4 or more damage this turn, exile Boarded Window. |
| Wild Defiance | 2G | Enchantment | Whenever a creature you control becomes the target of an instant or sorcery spell, that creature gets +3/+3 until end of turn. |
| Minotaur Skullcleaver | 2R | Creature — Minotaur Berserker | Haste When Minotaur Skullcleaver enters the battlefield, it gets +2/+0 until end of turn. 2/2 |
| Champion's Helm | 3 | Artifact — Equipment | Equipped creature gets +2/+2. As long as equipped creature is legendary, it has hexproof. (It can't be the target of spells or abilities your opponents control.) Equip {1} |
| Temporal Distortion | 3UU | Enchantment | Whenever a creature or land becomes tapped, put an hourglass counter on it. Each permanent with an hourglass counter on it doesn't untap during its controller's untap step. At the beginning of each player's upkeep, remove all hourglass counters from permanents that player controls. |
| Lesser Werewolf | 3B | Creature — Werewolf | {B}: If Lesser Werewolf's power is 1 or more, it gets -1/-0 until end of turn and put a -0/-1 counter on target creature blocking or blocked by Lesser Werewolf. Activate only during the declare blockers step. 2/4 |
| Bold Impaler | R | Creature — Vampire Knight | {2}{R}: Bold Impaler gets +2/+0 until end of turn. 1/2 |