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 |
|---|---|---|---|
| Quirion Sentinel | 1G | Creature — Elf Druid | When Quirion Sentinel enters the battlefield, add one mana of any color. 2/1 |
| Leyline Prowler | 1BG | Creature — Nightmare Beast | Deathtouch, lifelink {T}: Add one mana of any color. 2/3 |
| Mother of Runes | W | Creature — Human Cleric | {T}: Target creature you control gains protection from the color of your choice until end of turn. 1/1 |
| Opaline Unicorn | 3 | Artifact Creature — Unicorn | {T}: Add one mana of any color. 1/2 |
| Celestial Prism | 3 | Artifact | {2}, {T}: Add one mana of any color. |
| Mana Cylix | 1 | Artifact | {1}, {T}: Add one mana of any color. |
| Manalith | 3 | Artifact | {T}: Add one mana of any color. |
| Seasonal Ritual | G | Sorcery — Adventure | Add one mana of any color. (Then exile this card. You may cast the creature later from exile.) |
| Morophon, the Boundless | 7 | Legendary Creature — Shapeshifter | Changeling (This card is every creature type.) As Morophon, the Boundless enters the battlefield, choose a creature type. Spells of the chosen type you cast cost {W}{U}{B}{R}{G} less to cast. This effect reduces only the amount of colored mana you pay. Other creatures you control of the chosen type get +1/+1. 6/6 |
| Prismatic Wardrobe | W | Sorcery | Destroy target nonartifact, nonland permanent that doesn't share a color with clothing worn by its controller. |