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 |
|---|---|---|---|
| Aether Hub | Land | When Aether Hub enters the battlefield, you get {E} (an energy counter). {T}: Add {C}. {T}, Pay {E}: Add one mana of any color. | |
| Feat of Resistance | 1W | Instant | Put a +1/+1 counter on target creature you control. It gains protection from the color of your choice until end of turn. (It can't be blocked, targeted, dealt damage, enchanted, or equipped by anything of that color.) |
| Harvester Druid | 1G | Creature — Human Druid | {T}: Add one mana of any color that a land you control could produce. 1/1 |
| Springleaf Drum | 1 | Artifact | {T}, Tap an untapped creature you control: Add one mana of any color. |
| Pillar of the Paruns | Land | {T}: Add one mana of any color. Spend this mana only to cast a multicolored spell. | |
| Blacker Lotus | 0 | Artifact | {T}: Tear Blacker Lotus into pieces. Add four mana of any one color. Remove the pieces from the game. |
| Haunting Apparition | 1UB | Creature — Spirit | Flying As Haunting Apparition enters the battlefield, choose an opponent. Haunting Apparition's power is equal to 1 plus the number of green creature cards in the chosen player's graveyard. 1+*/2 |
| Patriar's Seal | 3 | Artifact | {T}: Add one mana of any color. {1}, {T}: Untap target legendary creature you control. |
| Rally the Righteous | 1RW | Instant | Radiance — Untap target creature and each other creature that shares a color with it. Those creatures get +2/+0 until end of turn. |
| Sunbird Standard | 3 | Artifact | {T}: Add one mana of any color. Craft with one or more {5} ({5}, Exile this artifact, Exile one or more other permanents you control and/or cards from your graveyard: Return this card transformed under its owner's control. Craft only as a sorcery.) |