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 |
|---|---|---|---|
| Induce Despair | 2B | Instant | As an additional cost to cast this spell, reveal a creature card from your hand. Target creature gets -X/-X until end of turn, where X is the revealed card's mana value. |
| Tread Mill | Artifact — Contraption | Whenever you crank Tread Mill, until end of turn, target creature gets +1/+2, gains vigilance, and becomes an artifact in addition to its other types. | |
| Gerrymandering | 2G | Sorcery | Exile all lands. Give each player a number of those cards chosen at random equal to the number of those cards the player controlled. Each player returns those cards to the battlefield under their control. |
| Elvish Branchbender | 2G | Creature — Elf Druid | {T}: Until end of turn, target Forest becomes an X/X Treefolk creature in addition to its other types, where X is the number of Elves you control. 2/2 |
| Zagoth Mamba | B | Creature — Nightmare Snake | Whenever this creature mutates, target creature an opponent controls gets -2/-2 until end of turn. 1/1 |
| Price of Glory | 2R | Enchantment | Whenever a player taps a land for mana, if it's not that player's turn, destroy that land. |
| Cactus Preserve | Land — Desert | Cactus Preserve enters the battlefield tapped. {T}: Add one mana of any type that a land you control could produce. {3}: Until end of turn, Cactus Preserve becomes an X/X green Plant creature with reach, where X is the greatest mana value among your commanders. It's still a land. | |
| Ghoulflesh | B | Enchantment — Aura | Enchant creature Enchanted creature gets -1/-1 and is a black Zombie in addition to its other colors and types. |
| Pursue Glory | 3R | Instant | Attacking creatures get +2/+0 until end of turn. Cycling {2} ({2}, Discard this card: Draw a card.) |
| Balthor the Stout | 1RR | Legendary Creature — Dwarf Barbarian | Other Barbarian creatures get +1/+1. {R}: Another target Barbarian creature gets +1/+0 until end of turn. 2/2 |