M:tG card similarity search
UUU · Enchantment
Cumulative upkeep {1}{U}{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.) If tapped for mana, Plains produce {R}, Swamps produce {G}, Mountains produce {W}, and Forests produce {B} instead of any other type.
| Name | Mana | Type | Text |
|---|---|---|---|
| Sunken Citadel | Land — Cave | Sunken Citadel enters the battlefield tapped. As it enters, choose a color. {T}: Add one mana of the chosen color. {T}: Add two mana of the chosen color. Spend this mana only to activate abilities of land sources. | |
| Phobian Phantasm | 1BB | Creature — Illusion | Flying; fear (This creature can't be blocked except by artifact creatures and/or black creatures.) Cumulative upkeep {B} (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.) 3/3 |
| Flood | U | Enchantment | {U}{U}: Tap target creature without flying. |
| Demonic Hordes | 3BBB | Creature — Demon | {T}: Destroy target land. At the beginning of your upkeep, unless you pay {B}{B}{B}, tap Demonic Hordes and sacrifice a land of an opponent's choice. 5/5 |
| River Song's Diary | 3 | Artifact | Imprint — Whenever a player casts an instant or sorcery spell from their hand, exile it instead of putting it into a graveyard as it resolves. At the beginning of your upkeep, if there are four or more cards exiled with River Song's Diary, choose one of them at random. You may cast it without paying its mana cost. |
| Ravenous Vampire | 3BB | Creature — Vampire | Flying At the beginning of your upkeep, you may sacrifice a nonartifact creature. If you do, put a +1/+1 counter on Ravenous Vampire. If you don't, tap Ravenous Vampire. 3/3 |
| Abandoned Outpost | Land | Abandoned Outpost enters the battlefield tapped. {T}: Add {W}. {T}, Sacrifice Abandoned Outpost: Add one mana of any color. | |
| Bog Wreckage | Land | Bog Wreckage enters the battlefield tapped. {T}: Add {B}. {T}, Sacrifice Bog Wreckage: Add one mana of any color. | |
| Ravaged Highlands | Land | Ravaged Highlands enters the battlefield tapped. {T}: Add {R}. {T}, Sacrifice Ravaged Highlands: Add one mana of any color. | |
| Seafloor Debris | Land | Seafloor Debris enters the battlefield tapped. {T}: Add {U}. {T}, Sacrifice Seafloor Debris: Add one mana of any color. |