M:tG card similarity search
| Name | Mana | Type | Text |
|---|---|---|---|
| Stronghold Machinist | 2U | Creature — Human Spellshaper | {U}{U}, {T}, Discard a card: Counter target noncreature spell. 1/1 |
| Ertai, the Corrupted | 2WUB | Legendary Creature — Phyrexian Human Wizard | {U}, {T}, Sacrifice a creature or enchantment: Counter target spell. 3/4 |
| Repulsive Mutation | XGU | Instant | Put X +1/+1 counters on target creature you control. Then counter up to one target spell unless its controller pays mana equal to the greatest power among creatures you control. |
| Dovescape | 3W/UW/UW/U | Enchantment | ({W/U} can be paid with either {W} or {U}.) Whenever a player casts a noncreature spell, counter that spell. That player creates X 1/1 white and blue Bird creature tokens with flying, where X is the spell's mana value. |
| 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 |
| In the Eye of Chaos | 2U | World Enchantment | Whenever a player casts an instant spell, counter it unless that player pays {X}, where X is its mana value. |
| Devious Cover-Up | 2UU | Instant | Counter target spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard. You may shuffle up to four target cards from your graveyard into your library. |
| Frilled Mystic | GGUU | Creature — Elf Lizard Wizard | Flash When Frilled Mystic enters the battlefield, you may counter target spell. 3/2 |
| Kaervek the Merciless | 5BR | Legendary Creature — Human Shaman | Whenever an opponent casts a spell, Kaervek the Merciless deals damage equal to that spell's mana value to any target. 5/4 |
| Lapis Orb of Dragonkind | 2U | Artifact | {T}: Add {U}. When you spend this mana to cast a Dragon creature spell, scry 2. (Look at the top two cards of your library, then put any number of them on the bottom of your library and the rest on top in any order.) |