M:tG card similarity search
1W · Enchantment
As Call to Arms enters the battlefield, choose a color and an opponent. White creatures get +1/+1 as long as the chosen color is the most common color among nontoken permanents the chosen player controls but isn't tied for most common. When the chosen color isn't the most common color among nontoken permanents the chosen player controls or is tied for most common, sacrifice Call to Arms.
| Name | Mana | Type | Text |
|---|---|---|---|
| Thriving Heath | Land | Thriving Heath enters the battlefield tapped. As Thriving Heath enters the battlefield, choose a color other than white. {T}: Add {W} or one mana of the chosen color. | |
| Nyx Lotus | 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.) |
| Meteor Crater | Land | {T}: Choose a color of a permanent you control. Add one mana of that color. | |
| Captivating Crossroads | Land | During your first three turns of the game, Captivating Crossroads enters the battlefield tapped if you were the starting player. As Captivating Crossroads enters the battlefield, choose a color. {T}: Add one mana of the chosen color. | |
| Chameleon Spirit | 3U | Creature — Illusion Spirit | As Chameleon Spirit enters the battlefield, choose a color. Chameleon Spirit's power and toughness are each equal to the number of permanents of the chosen color your opponents control. */* |
| Throne of Eldraine | 5 | Legendary Artifact | As Throne of Eldraine enters the battlefield, choose a color. {T}: Add four mana of the chosen color. Spend this mana only to cast monocolored spells of that color. {3}, {T}: Draw two cards. Spend only mana of the chosen color to activate this ability. |
| 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. |
| Coldsteel Heart | 2 | Snow Artifact | Coldsteel Heart enters the battlefield tapped. As Coldsteel Heart enters the battlefield, choose a color. {T}: Add one mana of the chosen color. |
| Shimmerdrift Vale | Snow Land | Shimmerdrift Vale enters the battlefield tapped. As Shimmerdrift Vale enters the battlefield, choose a color. {T}: Add one mana of the chosen color. | |
| Uncharted Haven | Land | Uncharted Haven enters the battlefield tapped. As Uncharted Haven enters the battlefield, choose a color. {T}: Add one mana of the chosen color. |