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 |
|---|---|---|---|
| Glimmervoid | Land | At the beginning of the end step, if you control no artifacts, sacrifice Glimmervoid. {T}: Add one mana of any color. | |
| Equipoise | 2W | Enchantment | At the beginning of your upkeep, for each land target player controls in excess of the number you control, choose a land that player controls, then the chosen permanents phase out. Repeat this process for artifacts and creatures. (While they're phased out, they're treated as though they don't exist. They phase in before that player untaps during their next untap step.) |
| Pristine Skywise | 4WU | Creature — Dragon | Flying Whenever you cast a noncreature spell, untap Pristine Skywise. It gains protection from the color of your choice until end of turn. 6/4 |
| City of Brass | Land | Whenever City of Brass becomes tapped, it deals 1 damage to you. {T}: Add one mana of any color. | |
| Replicating Ring | 3 | Snow Artifact | {T}: Add one mana of any color. At the beginning of your upkeep, put a night counter on Replicating Ring. Then if it has eight or more night counters on it, remove all of them and create eight colorless snow artifact tokens named Replicated Ring with "{T}: Add one mana of any color." |
| Humble Naturalist | 1G | Creature — Human Druid | {T}: Add one mana of any color. Spend this mana only to cast a creature spell. 1/3 |
| Knight of Dawn | 1WW | Creature — Human Knight | First strike {W}{W}: Knight of Dawn gains protection from the color of your choice until end of turn. 2/2 |
| Mystic Barrier | 4W | Enchantment | When Mystic Barrier enters the battlefield or at the beginning of your upkeep, choose left or right. Each player may attack only the nearest opponent in the last chosen direction and planeswalkers controlled by that opponent. |
| Lotus Cobra | 1G | Creature — Snake | Landfall — Whenever a land enters the battlefield under your control, add one mana of any color. 2/1 |
| Redeem the Lost | 1W | Instant | Target creature you control gains protection from the color of your choice until end of turn. Clash with an opponent. If you win, return Redeem the Lost to its owner's hand. (Each clashing player reveals the top card of their library, then puts that card on the top or bottom. A player wins if their card had a higher mana value.) |