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 |
|---|---|---|---|
| Primal Boost | 2G | Instant | Target creature gets +4/+4 until end of turn. Cycling {2}{G} ({2}{G}, Discard this card: Draw a card.) When you cycle Primal Boost, you may have target creature get +1/+1 until end of turn. |
| Armix, Filigree Thrasher | 2B | Legendary Artifact Creature — Golem | Whenever Armix, Filigree Thrasher attacks, you may discard a card. When you do, target creature defending player controls gets -X/-X until end of turn, where X is the number of artifacts you control plus the number of artifact cards in your graveyard. Partner (You can have two commanders if both have partner.) 3/2 |
| Assembly-Worker | 3 | Artifact Creature — Assembly-Worker | {T}: Target Assembly-Worker creature gets +1/+1 until end of turn. 2/2 |
| Barkshell Blessing | G/W | Instant | Target creature gets +2/+2 until end of turn. Conspire (As you cast this spell, you may tap two untapped creatures you control that share a color with it. When you do, copy it and you may choose a new target for the copy.) |
| Artful Maneuver | 1W | Instant | Target creature gets +2/+2 until end of turn. Rebound (If you cast this spell from your hand, exile it as it resolves. At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.) |
| Prey's Vengeance | G | Instant | Target creature gets +2/+2 until end of turn. Rebound (If you cast this spell from your hand, exile it as it resolves. At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.) |
| Retribution of the Ancients | B | Enchantment | {B}, Remove X +1/+1 counters from among creatures you control: Target creature gets -X/-X until end of turn. |
| Monstrify | 3G | Sorcery | Target creature gets +4/+4 until end of turn. Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.) |
| Cankerous Thirst | 3B/G | Instant | If {B} was spent to cast this spell, you may have target creature get -3/-3 until end of turn. If {G} was spent to cast this spell, you may have target creature get +3/+3 until end of turn. (Do both if {B}{G} was spent.) |
| Resize | 1G | Instant | Target creature gets +3/+3 until end of turn. Recover {1}{G} (When a creature is put into your graveyard from the battlefield, you may pay {1}{G}. If you do, return this card from your graveyard to your hand. Otherwise, exile this card.) |