M:tG card similarity search
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.
| Name | Mana | Type | Text |
|---|---|---|---|
| Belligerent Regisaur | Creature — Dinosaur | Trample Whenever you cast a spell, Belligerent Regisaur gains indestructible until end of turn. 4/3 | |
| Grim Wanderer | 1B | Creature — Goblin Warlock | Flash Tragic Backstory — Cast this spell only if a creature died this turn. 5/3 |
| Sen Triplets | 2WUB | Legendary Artifact Creature — Human Wizard | At the beginning of your upkeep, choose target opponent. This turn, that player can't cast spells or activate abilities and plays with their hand revealed. You may play lands and cast spells from that player's hand this turn. 3/3 |
| Mirrored Depths | Plane — Karsus | Whenever a player casts a spell, that player flips a coin. If the player loses the flip, counter that spell. Whenever chaos ensues, target player reveals the top card of their library. If it's a nonland card, you may cast it without paying its mana cost. | |
| Counterlash | 4UU | Instant | Counter target spell. You may cast a spell that shares a card type with it from your hand without paying its mana cost. |
| Twinning Glass | 4 | Artifact | {1}, {T}: You may cast a spell from your hand without paying its mana cost if it has the same name as a spell that was cast this turn. |
| Chandra's Embercat | 1R | Creature — Elemental Cat | {T}: Add {R}. Spend this mana only to cast an Elemental spell or a Chandra planeswalker spell. 2/2 |
| Staff of the Letter Magus | 3 | Artifact | As Staff of the Letter Magus enters the battlefield, choose a consonant other than N, R, S, or T. Whenever a player casts a spell, you gain 1 life for each time the chosen letter appears in that spell's name. |
| Lurking Spinecrawler | 3B | Creature — Horror | When Lurking Spinecrawler enters the battlefield, you may choose a nonland card in your hand. If you do, that card perpetually incorporates {1}{B} and gains "When you cast this spell, each opponent sacrifices a creature. Each opponent who can't discards a card." Whenever you cast a multicolored spell, for each of that spell's colors, each opponent loses 1 life and you gain 1 life. 5/4 |
| Chalice of the Void | XX | Artifact | Chalice of the Void enters the battlefield with X charge counters on it. Whenever a player casts a spell with mana value equal to the number of charge counters on Chalice of the Void, counter that spell. |