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 |
|---|---|---|---|
| When Fluffy Bunnies Attack | 3B | Instant | Target creature gets -X/-X until end of turn, where X is the number of times the letter of your choice appears in that creature's name. |
| Goblin Burrows | Land | {T}: Add {C}. {1}{R}, {T}: Target Goblin creature gets +2/+0 until end of turn. | |
| Mana Reflection | 4GG | Enchantment | If you tap a permanent for mana, it produces twice as much of that mana instead. |
| Deep Water | UU | Enchantment | {U}: Until end of turn, if you tap a land you control for mana, it produces {U} instead of any other type. |
| Snowfall | 2U | Enchantment | Cumulative upkeep {U} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) Whenever an Island is tapped for mana, its controller may add an additional {U}. If that Island is snow, its controller may add an additional {U}{U} instead. Spend this mana only to pay cumulative upkeep costs. |
| Unique Charmed Pants | Stickers | {TK}{TK} — {T}: Add one mana of any color. {TK}{TK}{TK} — Whenever this creature attacks, if it's not a Brushwagg, it gets +X/+0 until end of turn, where X is the number of supertypes, card types, and subtypes it has. {TK}{TK} — 5/1 {TK}{TK}{TK}{TK} — 4/8 | |
| Stronghold Overseer | 3BBB | Creature — Demon | Flying Shadow (This creature can block or be blocked by only creatures with shadow.) {B}{B}: Creatures with shadow get +1/+0 until end of turn and creatures without shadow get -1/-0 until end of turn. 5/5 |
| Accessories to Murder | Artifact — Contraption | Whenever you crank Accessories to Murder, target creature gets +X/+0 until end of turn, where X is the number of creatures you control. | |
| Tragic Slip | B | Instant | Target creature gets -1/-1 until end of turn. Morbid — That creature gets -13/-13 until end of turn instead if a creature died this turn. |
| Cloudkill | 4BB | Sorcery | All creatures get -X/-X until end of turn, where X is the greatest mana value of a commander you own on the battlefield or in the command zone. |