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 |
|---|---|---|---|
| Painted Bluffs | Land — Desert | {T}: Add {C}. {1}, {T}: Add one mana of any color. | |
| Prismatic Lens | 2 | Artifact | {T}: Add {C}. {1}, {T}: Add one mana of any color. |
| School of the Unseen | Land | {T}: Add {C}. {2}, {T}: Add one mana of any color. | |
| Shimmering Grotto | Land | {T}: Add {C}. {1}, {T}: Add one mana of any color. | |
| Unknown Shores | Land | {T}: Add {C}. {1}, {T}: Add one mana of any color. | |
| Nebelgast Intruder | 2U | Creature — Spirit | Flash Flying When Nebelgast Intruder enters the battlefield, up to one target creature an opponent controls gets -2/-0 until end of turn. 2/1 |
| Meren of Clan Nel Toth | 2BG | Legendary Creature — Human Shaman | Whenever another creature you control dies, you get an experience counter. At the beginning of your end step, choose target creature card in your graveyard. If that card's mana value is less than or equal to the number of experience counters you have, return it to the battlefield. Otherwise, put it into your hand. 3/4 |
| Watermarket | Land | {T}: Add {C}{C}. Spend this mana only to cast spells with watermarks. | |
| Unstable Robot Dragon | Stickers | {TK}{TK} — {1}: Switch this creature's power and toughness until end of turn. {TK}{TK}{TK}{TK} — Whenever this creature attacks, it gets +5/+5 until end of turn. {TK}{TK} — 3/2 {TK}{TK}{TK} — 2/7 | |
| Cyclical Evolution | 3GG | Sorcery | Target creature gets +3/+3 until end of turn. Exile Cyclical Evolution with three time counters on it. Suspend 3—{2}{G} (Rather than cast this card from your hand, you may pay {2}{G} and exile it with three time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost.) |