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 |
|---|---|---|---|
| Mad Science Fair Project | 3 | Artifact | {T}: Roll a six-sided die. On a 3 or lower, target player adds {C}. Otherwise, that player adds one mana of any color they choose. |
| Dark Triumph | 4B | Instant | If you control a Swamp, you may sacrifice a creature rather than pay this spell's mana cost. Creatures you control get +2/+0 until end of turn. |
| Curse of Chains | 1W/U | Enchantment — Aura | Enchant creature At the beginning of each upkeep, tap enchanted creature. |
| Flowstone Crusher | 3RR | Creature — Beast | {R}: Flowstone Crusher gets +1/-1 until end of turn. 4/4 |
| Flowstone Shambler | 2R | Creature — Beast | {R}: Flowstone Shambler gets +1/-1 until end of turn. 2/2 |
| Avarice Amulet | 4 | Artifact — Equipment | Equipped creature gets +2/+0 and has vigilance and "At the beginning of your upkeep, draw a card." Whenever equipped creature dies, target opponent gains control of Avarice Amulet. Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.) |
| Aerial Modification | 4W | Enchantment — Aura | Enchant creature or Vehicle As long as enchanted permanent is a Vehicle, it's a creature in addition to its other types. Enchanted creature gets +2/+2 and has flying. |
| Deepwood Legate | 3B | Creature — Shade | If an opponent controls a Forest and you control a Swamp, you may cast this spell without paying its mana cost. {B}: Deepwood Legate gets +1/+1 until end of turn. 1/1 |
| Bring to Light | 3GU | Sorcery | Converge — Search your library for a creature, instant, or sorcery card with mana value less than or equal to the number of colors of mana spent to cast this spell, exile that card, then shuffle. You may cast that card without paying its mana cost. |
| Lay Down Arms | W | Sorcery | Exile target creature with mana value less than or equal to the number of Plains you control. Its controller gains 3 life. |