M:tG card similarity search
1U · Instant
Counter target spell unless its controller pays {X}, where X is your devotion to blue. (Each {U} in the mana costs of permanents you control counts toward your devotion to blue.)
| Name | Mana | Type | Text | 
|---|---|---|---|
| Artifact Blast | R | Instant | Counter target artifact spell. | 
| Envelop | U | Instant | Counter target sorcery spell. | 
| Extinguish | 1U | Instant | Counter target sorcery spell. | 
| Brainwash | W | Enchantment — Aura | Enchant creature Enchanted creature can't attack unless its controller pays {3}. | 
| Frilled Mystic | GGUU | Creature — Elf Lizard Wizard | Flash When Frilled Mystic enters the battlefield, you may counter target spell. 3/2 | 
| Norn's Annex | 3W/PW/P | Artifact | ({W/P} can be paid with either {W} or 2 life.) Creatures can't attack you or planeswalkers you control unless their controller pays {W/P} for each of those creatures. | 
| Ertai, the Corrupted | 2WUB | Legendary Creature — Phyrexian Human Wizard | {U}, {T}, Sacrifice a creature or enchantment: Counter target spell. 3/4 | 
| Lullmage Mentor | 1UU | Creature — Merfolk Wizard | Whenever a spell or ability you control counters a spell, you may create a 1/1 blue Merfolk creature token. Tap seven untapped Merfolk you control: Counter target spell. 2/2 | 
| Nether Void | 3B | World Enchantment | Whenever a player casts a spell, counter it unless that player pays {3}. | 
| Minamo's Meddling | 2UU | Instant | Counter target spell. That spell's controller reveals their hand, then discards each card with the same name as a card spliced onto that spell. |