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 |
|---|---|---|---|
| Zendikar Resurgent | 5GG | Enchantment | Whenever you tap a land for mana, add one mana of any type that land produced. (The types of mana are white, blue, black, red, green, and colorless.) Whenever you cast a creature spell, draw a card. |
| Shambling Goblin | B | Creature — Zombie Goblin | When Shambling Goblin dies, target creature an opponent controls gets -1/-1 until end of turn. 1/1 |
| Duergar Mine-Captain | 2R/W | Creature — Dwarf Soldier | {1}{R/W}, {Q}: Attacking creatures get +1/+0 until end of turn. ({Q} is the untap symbol.) 2/1 |
| Appeal | G | Sorcery | Until end of turn, target creature gains trample and gets +X/+X, where X is the number of creatures you control. |
| World Queller | 3WW | Creature — Avatar | At the beginning of your upkeep, you may choose a card type. If you do, each player sacrifices a permanent of that type. 4/4 |
| Hunger of the Nim | 1B | Sorcery | Target creature gets +1/+0 until end of turn for each artifact you control. |
| Devotee of Strength | 2G | Creature — Naga Wizard | {4}{G}: Target creature gets +2/+2 until end of turn. 3/2 |
| Loss | 2B | Instant | Creatures your opponents control get -1/-1 until end of turn. Fuse (You may cast one or both halves of this card from your hand.) |
| Clutch of Undeath | 3BB | Enchantment — Aura | Enchant creature Enchanted creature gets +3/+3 as long as it's a Zombie. Otherwise, it gets -3/-3. |
| Blighted Shaman | 1B | Creature — Human Cleric Shaman | {T}, Sacrifice a Swamp: Target creature gets +1/+1 until end of turn. {T}, Sacrifice a creature: Target creature gets +2/+2 until end of turn. 1/1 |