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 |
|---|---|---|---|
| Tuknir Deathlock | RRGG | Legendary Creature — Human Wizard | Flying {R}{G}, {T}: Target creature gets +2/+2 until end of turn. 2/2 |
| Harrier Griffin | 5W | Creature — Griffin | Flying At the beginning of your upkeep, tap target creature. 3/3 |
| Erebos's Emissary | 3B | Enchantment Creature — Snake | Bestow {5}{B} (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.) Discard a creature card: Erebos's Emissary gets +2/+2 until end of turn. If Erebos's Emissary is an Aura, enchanted creature gets +2/+2 until end of turn instead. Enchanted creature gets +3/+3. 3/3 |
| Bleed Dry | 2BB | Instant | Target creature gets -13/-13 until end of turn. If that creature would die this turn, exile it instead. |
| Skulduggery | B | Instant | Until end of turn, target creature you control gets +1/+1 and target creature an opponent controls gets -1/-1. |
| Mondassian Colony Ship | Plane — Spacecraft | Whenever a creature attacks, it gets +1/+1 until end of turn for each other creature its controller controls that shares a creature type with it. Whenever chaos ensues, turn target creature face down. It becomes a 2/2 Cyberman artifact creature. | |
| Vile Deacon | 2BB | Creature — Human Cleric | Whenever Vile Deacon attacks, it gets +X/+X until end of turn, where X is the number of Clerics on the battlefield. 2/2 |
| Mech Hangar | Land | {T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast a Pilot or Vehicle spell. {3}, {T}: Target Vehicle becomes an artifact creature until end of turn. | |
| Firemind Vessel | 4 | Artifact | Firemind Vessel enters the battlefield tapped. {T}: Add two mana of different colors. |
| Geistpack Alpha | 3G | Creature — Wolf | Trample When Geistpack Alpha dies, seek a permanent card with mana value equal to the number of lands you control. 5/4 |