M:tG card similarity search
| Name | Mana | Type | Text |
|---|---|---|---|
| Tarnished Citadel | Land | {T}: Add {C}. {T}: Add one mana of any color. Tarnished Citadel deals 3 damage to you. | |
| Ilysian Caryatid | 1G | Creature — Plant | {T}: Add one mana of any color. If you control a creature with power 4 or greater, add two mana of any one color instead. 1/1 |
| Obsidian Obelisk | 2 | Artifact | Obsidian Obelisk enters the battlefield tapped. {T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast a multicolored spell. |
| Guildmages' Forum | Land | {T}: Add {C}. {1}, {T}: Add one mana of any color. If that mana is spent on a multicolored creature spell, that creature enters the battlefield with an additional +1/+1 counter on it. | |
| Corrupted Crossroads | Land | {T}: Add {C}. ({C} represents colorless mana.) {T}, Pay 1 life: Add one mana of any color. Spend this mana only to cast a spell with devoid. | |
| Letter of Acceptance | 3 | Artifact | {T}: Add one mana of any color. {2}, {T}, Sacrifice Letter of Acceptance: Draw a card. |
| Quirion Elves | 1G | Creature — Elf Druid | As Quirion Elves enters the battlefield, choose a color. {T}: Add {G}. {T}: Add one mana of the chosen color. 1/1 |
| Caged Sun | 6 | Artifact | As Caged Sun enters the battlefield, choose a color. Creatures you control of the chosen color get +1/+1. Whenever a land's ability causes you to add one or more mana of the chosen color, add one additional mana of that color. |
| Mox Opal | 0 | Legendary Artifact | Metalcraft — {T}: Add one mana of any color. Activate only if you control three or more artifacts. |
| Gem Bazaar | Land | When Gem Bazaar comes into play, choose a random color. {T}: Add to your mana pool one mana of the color last chosen. Then choose a random color. |