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 |
|---|---|---|---|
| Arvinox, the Mind Flail | 4BBB | Legendary Enchantment Creature — Horror | Arvinox, the Mind Flail isn't a creature unless you control three or more permanents you don't own. At the beginning of your end step, exile the bottom card of each opponent's library face down. For as long as those cards remain exiled, you may look at them, you may cast permanent spells from among them, and you may spend mana as though it were mana of any color to cast those spells. 9/9 |
| Cleansing Beam | 4R | Instant | Radiance — Cleansing Beam deals 2 damage to target creature and each other creature that shares a color with it. |
| Cryptolith Rite | 1G | Enchantment | Creatures you control have "{T}: Add one mana of any color." |
| Kindred Discovery | 3UU | Enchantment | As Kindred Discovery enters the battlefield, choose a creature type. Whenever a creature you control of the chosen type enters the battlefield or attacks, draw a card. |
| Covetous Urge | U/BU/BU/BU/B | Sorcery | Target opponent reveals their hand. You choose a nonland card from that player's graveyard or hand and exile it. You may cast that card for as long as it remains exiled, and you may spend mana as though it were mana of any color to cast that spell. |
| Psychic Intrusion | 3UB | Sorcery | Target opponent reveals their hand. You choose a nonland card from that player's graveyard or hand and exile it. You may cast that card for as long as it remains exiled, and you may spend mana as though it were mana of any color to cast that spell. |
| Network Terminal | 3 | Artifact | {T}: Add one mana of any color. {1}, {T}, Tap another untapped artifact you control: Draw a card, then discard a card. |
| Crystal Grotto | Land | When Crystal Grotto enters the battlefield, scry 1. {T}: Add {C}. {1}, {T}: Add one mana of any color. | |
| Thornscape Master | 2GG | Creature — Human Wizard | {R}{R}, {T}: Thornscape Master deals 2 damage to target creature. {W}{W}, {T}: Target creature gains protection from the color of your choice until end of turn. 2/2 |
| Exchange of Words | 1UU | Enchantment | When Exchange of Words enters the battlefield, choose two target creatures. For as long as Exchange of Words remains on the battlefield, exchange the text boxes of those creatures. |