M:tG card similarity search
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
| Name | Mana | Type | Text |
|---|---|---|---|
| Thieving Aven | 2U | Creature — Bird Rogue | Flying Whenever Thieving Aven deals combat damage to a player, heist target opponent's library. Whenever you cast a spell you don't own, put a +1/+1 counter on Thieving Aven. 1/4 |
| Hisoka, Minamo Sensei | 2UU | Legendary Creature — Human Wizard | {2}{U}, Discard a card: Counter target spell if it has the same mana value as the discarded card. 1/3 |
| Cindervines | RG | Enchantment | Whenever an opponent casts a noncreature spell, Cindervines deals 1 damage to that player. {1}, Sacrifice Cindervines: Destroy target artifact or enchantment. Cindervines deals 2 damage to that permanent's controller. |
| Augury Adept | 1W/UW/U | Creature — Kithkin Wizard | Whenever Augury Adept deals combat damage to a player, reveal the top card of your library and put that card into your hand. You gain life equal to its mana value. 2/2 |
| Abjure | U | Instant | As an additional cost to cast this spell, sacrifice a blue permanent. Counter target spell. |
| Erratic Explosion | 2R | Sorcery | Choose any target. Reveal cards from the top of your library until you reveal a nonland card. Erratic Explosion deals damage equal to that card's mana value to that permanent or player. Put the revealed cards on the bottom of your library in any order. |
| Construction Arsonist | 1R | Creature — Goblin Rogue Wizard | When Construction Arsonist enters the battlefield, you may choose an instant or sorcery card in your hand. If you do, that card perpetually incorporates {R} and gains "When you cast this spell, it deals 2 damage to each opponent." Whenever you cast a multicolored spell, Construction Arsonist gets +1/+1 until end of turn for each of that spell's colors. 2/2 |
| Mogg Sentry | R | Creature — Goblin Warrior | Whenever an opponent casts a spell, Mogg Sentry gets +2/+2 until end of turn. 1/1 |
| Naar Isle | Plane — Wildfire | At the beginning of your upkeep, put a flame counter on Naar Isle, then Naar Isle deals damage to you equal to the number of flame counters on it. Whenever chaos ensues, Naar Isle deals 3 damage to target player or planeswalker. | |
| Lure of Prey | 2GG | Instant | Cast this spell only if an opponent cast a creature spell this turn. You may put a green creature card from your hand onto the battlefield. |