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 | 
|---|---|---|---|
| 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. | 
| Skittering Skirge | BB | Creature — Phyrexian Imp | Flying When you cast a creature spell, sacrifice Skittering Skirge. 3/2 | 
| The First Sliver | WUBRG | Legendary Creature — Sliver | Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom of your library in a random order.) Sliver spells you cast have cascade. 7/7 | 
| Wicker Picker | 3 | Artifact Creature — Scarecrow Guest | Creature spells you cast have sticker kicker {1}. (You may pay an additional {1} as you cast a creature spell. If you do, you get {TK}, then you may put a sticker on it.) 2/3 | 
| Nix | U | Instant | Counter target spell if no mana was spent to cast it. | 
| Myr Superion | 2 | Artifact Creature — Myr | Spend only mana produced by creatures to cast this spell. 5/6 | 
| Glademuse | 2G | Creature — Beast | Whenever a player casts a spell, if it's not their turn, that player draws a card. 2/4 | 
| Abjure | U | Instant | As an additional cost to cast this spell, sacrifice a blue permanent. Counter target spell. | 
| Grid Monitor | 4 | Artifact Creature — Construct | You can't cast creature spells. 4/6 | 
| Tangleroot | 3 | Artifact | Whenever a player casts a creature spell, that player adds {G}. |