M:tG card similarity search
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.
| Name | Mana | Type | Text |
|---|---|---|---|
| Letter of Acceptance | 3 | Artifact | {T}: Add one mana of any color. {2}, {T}, Sacrifice Letter of Acceptance: Draw a card. |
| Caldera Lake | Land | Caldera Lake enters the battlefield tapped. {T}: Add {C}. {T}: Add {U} or {R}. Caldera Lake deals 1 damage to you. | |
| Pine Barrens | Land | Pine Barrens enters the battlefield tapped. {T}: Add {C}. {T}: Add {B} or {G}. Pine Barrens deals 1 damage to you. | |
| Salt Flats | Land | Salt Flats enters the battlefield tapped. {T}: Add {C}. {T}: Add {W} or {B}. Salt Flats deals 1 damage to you. | |
| Scabland | Land | Scabland enters the battlefield tapped. {T}: Add {C}. {T}: Add {R} or {W}. Scabland deals 1 damage to you. | |
| Skyshroud Forest | Land | Skyshroud Forest enters the battlefield tapped. {T}: Add {C}. {T}: Add {G} or {U}. Skyshroud Forest deals 1 damage to you. | |
| Astrolabe | 3 | Artifact | {1}, {T}, Sacrifice Astrolabe: Add two mana of any one color. Draw a card at the beginning of the next turn's upkeep. |
| Slingbow Trap | 3G | Instant — Trap | If a black creature with flying is attacking, you may pay {G} rather than pay this spell's mana cost. Destroy target attacking creature with flying. |
| Geosurge | RRRR | Sorcery | Add {R}{R}{R}{R}{R}{R}{R}. Spend this mana only to cast artifact or creature spells. |
| Warden of Geometries | 4 | Creature — Eldrazi Drone | Vigilance {T}: Add {C}. ({C} represents colorless mana.) 2/3 |