M:tG card similarity search
2U · World Enchantment
Whenever a player casts an instant spell, counter it unless that player pays {X}, where X is its mana value.
| Name | Mana | Type | Text |
|---|---|---|---|
| Veilstone Amulet | 3 | Artifact | Whenever you cast a spell, creatures you control can't be the targets of spells or abilities your opponents control this turn. |
| Rathi Assassin | 2BB | Creature — Phyrexian Zombie Mercenary Assassin | {1}{B}{B}, {T}: Destroy target tapped nonblack creature. {3}, {T}: Search your library for a Mercenary permanent card with mana value 3 or less, put it onto the battlefield, then shuffle. 2/2 |
| Cut the Tethers | 2UU | Sorcery | For each Spirit, return it to its owner's hand unless that player pays {3}. |
| Bazaar of Wonders | 3UU | World Enchantment | When Bazaar of Wonders enters the battlefield, exile all graveyards. Whenever a player casts a spell, counter it if a card with the same name is in a graveyard or a nontoken permanent with the same name is on the battlefield. |
| Study Hall | Land | {T}: Add {C}. {1}, {T}: Add one mana of any color. When you spend this mana to cast your commander, scry X, where X is the number of times it's been cast from the command zone this game. | |
| Glen Elendra Pranksters | 3U | Creature — Faerie Wizard | Flying Whenever you cast a spell during an opponent's turn, you may return target creature you control to its owner's hand. 1/3 |
| Narset of the Ancient Way | 1URW | Legendary Planeswalker — Narset | [+1]: You gain 2 life. Add {U}, {R}, or {W}. Spend this mana only to cast a noncreature spell. [−2]: Draw a card, then you may discard a card. When you discard a nonland card this way, Narset of the Ancient Way deals damage equal to that card's mana value to target creature or planeswalker. [−6]: You get an emblem with "Whenever you cast a noncreature spell, this emblem deals 2 damage to any target." Loyalty 4 |
| Frenzied Devils | 4R | Creature — Devil | Haste Whenever you cast a noncreature spell, Frenzied Devils gets +2/+2 until end of turn. 3/3 |
| Prototype Portal | 4 | Artifact | Imprint — When Prototype Portal enters the battlefield, you may exile an artifact card from your hand. {X}, {T}: Create a token that's a copy of the exiled card. X is the mana value of that card. |
| Evasive Action | 1U | Instant | Domain — Counter target spell unless its controller pays {1} for each basic land type among lands you control. |