M:tG card similarity search
· Legendary Enchantment
Whenever an opponent casts their first spell each turn, counter that spell.
| Name | Mana | Type | Text | 
|---|---|---|---|
| Bosom Buddy | 3W | Creature — Elephant Townsfolk | Whenever you cast a spell, you may gain ½ life for each word in that spell's name. 1/4 | 
| Aether Barrier | 2U | Enchantment | Whenever a player casts a creature spell, that player sacrifices a permanent unless they pay {1}. | 
| Curse of Exhaustion | 2WW | Enchantment — Aura Curse | Enchant player Enchanted player can't cast more than one spell each turn. | 
| Vine Gecko | 1G | Creature — Elemental Lizard | The first kicked spell you cast each turn costs {1} less to cast. Whenever you cast a kicked spell, put a +1/+1 counter on Vine Gecko. 2/2 | 
| Damping Sphere | 2 | Artifact | If a land is tapped for two or more mana, it produces {C} instead of any other type and amount. Each spell a player casts costs {1} more to cast for each other spell that player has cast this turn. | 
| Ishai, Ojutai Dragonspeaker | 2WU | Legendary Creature — Bird Monk | Flying Whenever an opponent casts a spell, put a +1/+1 counter on Ishai, Ojutai Dragonspeaker. Partner (You can have two commanders if both have partner.) 1/1 | 
| Ambiguity | 2UU | Enchantment | Whenever a player plays a spell that counters a spell that has been played or a player plays a spell that comes into play with counters, that player may counter the next spell played or put an additional counter on a permanent that has already been played, but not countered. | 
| Wild-Magic Sorcerer | 3R | Creature — Orc Shaman | The first spell you cast from exile each turn has cascade. (When you cast your first spell from exile, 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.) 4/3 | 
| Hunting Velociraptor | 2R | Creature — Dinosaur | First strike Dinosaur spells you cast have prowl {2}{R}. (You may cast a spell for its prowl cost if you dealt combat damage to a player this turn with a creature with any of its creature types.) 3/2 | 
| Lone Wolf of the Natterknolls | Creature — Werewolf | Whenever an opponent casts a spell during your turn, draw two cards. At the beginning of each upkeep, if a player cast two or more spells last turn, transform Lone Wolf of the Natterknolls. 3/5 |