M:tG card similarity search
3UU · Enchantment
Whenever a player casts a spell, any other player may pay that spell's mana cost. If a player does, counter the spell. (Mana cost includes color.)
| Name | Mana | Type | Text |
|---|---|---|---|
| Invoke Prejudice | UUUU | Enchantment | Whenever an opponent casts a creature spell that doesn't share a color with a creature you control, counter that spell unless that player pays {X}, where X is its mana value. |
| Common Courtesy | 2UU | Enchantment | Whenever a player casts a spell without asking your permission while casting it, counter that spell. When a player asks you permission to cast a spell and you refuse, counter that spell and sacrifice Common Courtesy. |
| Fierce Guardianship | 2U | Instant | If you control a commander, you may cast this spell without paying its mana cost. Counter target noncreature spell. |
| Cephalid Shrine | 1UU | Enchantment | Whenever a player casts a spell, counter that spell unless that player pays {X}, where X is the number of cards in all graveyards with the same name as the spell. |
| Fist of Suns | 3 | Artifact | You may pay {W}{U}{B}{R}{G} rather than pay the mana cost for spells you cast. |
| Kentaro, the Smiling Cat | 1W | Legendary Creature — Human Samurai | Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.) You may pay {X} rather than pay the mana cost for Samurai spells you cast, where X is that spell's mana value. 2/1 |
| A-Security Rhox | 2RG | Creature — Rhino Warrior | You may pay {R}{G} rather than pay this spell's mana cost. Spend only mana produced by Treasures to cast it this way. 5/5 |
| Security Rhox | 2RG | Creature — Rhino Warrior | You may pay {R}{G} rather than pay this spell's mana cost. Spend only mana produced by Treasures to cast it this way. 5/4 |
| Erayo's Essence | Legendary Enchantment | Whenever an opponent casts their first spell each turn, counter that spell. | |
| Foil | 2UU | Instant | You may discard an Island card and another card rather than pay this spell's mana cost. Counter target spell. |