M:tG card similarity search
4 · Legendary Artifact
Nyx Lotus enters the battlefield tapped. {T}: Choose a color. Add an amount of mana of that color equal to your devotion to that color. (Your devotion to a color is the number of mana symbols of that color in the mana costs of permanents you control.)
| Name | Mana | Type | Text | 
|---|---|---|---|
| Utopia Sprawl | G | Enchantment — Aura | Enchant Forest As Utopia Sprawl enters the battlefield, choose a color. Whenever enchanted Forest is tapped for mana, its controller adds an additional one mana of the chosen color. | 
| 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. | |
| Silhana Starfletcher | 2G | Creature — Elf Druid Archer | Reach (This creature can block creatures with flying.) As Silhana Starfletcher enters the battlefield, choose a color. {T}: Add one mana of the chosen color. 1/3 | 
| 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 | 
| Cryptic Spires | Land | As you create your deck, circle two of the colors below. Cryptic Spires enters the battlefield tapped. {T}: Add one mana of either of the circled colors. | |
| Heraldic Banner | 3 | Artifact | As Heraldic Banner enters the battlefield, choose a color. Creatures you control of the chosen color get +1/+0. {T}: Add one mana of the chosen color. | 
| 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. | |
| 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. | 
| Edgewall Inn | Land | Edgewall Inn enters the battlefield tapped. As Edgewall Inn enters the battlefield, choose a color. {T}: Add one mana of the chosen color. {3}, {T}, Sacrifice Edgewall Inn: Return target card that has an Adventure from your graveyard to your hand. | |
| Forsaken Crossroads | Land | Forsaken Crossroads enters the battlefield tapped. As Forsaken Crossroads enters the battlefield, choose a color. When Forsaken Crossroads enters the battlefield, scry 1. If you weren't the starting player, you may untap Forsaken Crossroads instead. {T}: Add one mana of the chosen color. |