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 |
|---|---|---|---|
| Strength of Cedars | 4G | Instant — Arcane | Target creature gets +X/+X until end of turn, where X is the number of lands you control. |
| Genestealer Locus | 3U | Creature — Tyranid Human | Neurotraumal Rod — Whenever a creature attacks you, it gets -1/-0 until end of turn. Whenever a creature attacks one of your opponents, it gets +0/+1 until end of turn. 3/3 |
| Drag to the Bottom | 2BB | Sorcery | Domain — Each creature gets -X/-X until end of turn, where X is 1 plus the number of basic land types among lands you control. |
| Quarum Trench Gnomes | 3R | Creature — Gnome | {T}: If target Plains is tapped for mana, it produces colorless mana instead of white mana. (This effect lasts indefinitely.) 1/1 |
| Pendelhaven | Legendary Land | {T}: Add {G}. {T}: Target 1/1 creature gets +1/+2 until end of turn. | |
| Disciple of Tevesh Szat | 2BB | Creature — Human Cleric | {T}: Target creature gets -1/-1 until end of turn. {4}{B}{B}, {T}, Sacrifice Disciple of Tevesh Szat: Target creature gets -6/-6 until end of turn. 3/1 |
| Drana, Kalastria Bloodchief | 3BB | Legendary Creature — Vampire Shaman | Flying {X}{B}{B}: Target creature gets -0/-X until end of turn and Drana, Kalastria Bloodchief gets +X/+0 until end of turn. 4/4 |
| Nameless Inversion | 1B | Tribal Instant — Shapeshifter | Changeling (This card is every creature type.) Target creature gets +3/-3 and loses all creature types until end of turn. |
| Sick and Tired | 2B | Instant | Two target creatures each get -1/-1 until end of turn. |
| Compound Fracture | B | Instant | Target creature gets -1/-1 until end of turn. It gets an additional -1/-1 until end of turn for each card named Compound Fracture in your graveyard. |