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 |
|---|---|---|---|
| Meishin, the Mind Cage | 4UUU | Legendary Enchantment | All creatures get -X/-0, where X is the number of cards in your hand. |
| Ajani's Presence | W | Instant | Strive — This spell costs {2}{W} more to cast for each target beyond the first. Any number of target creatures each get +1/+1 and gain indestructible until end of turn. (Damage and effects that say "destroy" don't destroy them.) |
| Devouring Rage | 4R | Instant — Arcane | As an additional cost to cast this spell, you may sacrifice any number of Spirits. Target creature gets +3/+0 until end of turn. For each Spirit sacrificed this way, that creature gets an additional +3/+0 until end of turn. |
| Auspicious Arrival | 1W | Instant | Target creature gets +2/+2 until end of turn. Investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.") |
| Revelsong Horn | 2 | Artifact | {1}, {T}, Tap an untapped creature you control: Target creature gets +1/+1 until end of turn. |
| Fourth Bridge Prowler | B | Creature — Human Rogue | When Fourth Bridge Prowler enters the battlefield, you may have target creature get -1/-1 until end of turn. 1/1 |
| Phyrexian Debaser | 3B | Creature — Phyrexian Carrier | Flying {T}, Sacrifice Phyrexian Debaser: Target creature gets -2/-2 until end of turn. 2/2 |
| Colossal Heroics | 2G | Instant | Strive — This spell costs {1}{G} more to cast for each target beyond the first. Any number of target creatures each get +2/+2 until end of turn. Untap those creatures. |
| Protect | 2W | Instant | Target creature gets +2/+4 until end of turn. Fuse (You may cast one or both halves of this card from your hand.) |
| Bounty of Might | 4GG | Instant | Target creature gets +3/+3 until end of turn. Target creature gets +3/+3 until end of turn. Target creature gets +3/+3 until end of turn. |