M:tG card similarity search
UU · Enchantment
Whenever an opponent casts a spell, you may reveal the top card of your library. If you do, counter that spell if it has the same mana value as the revealed card.
| Name | Mana | Type | Text |
|---|---|---|---|
| Eidolon of the Great Revel | RR | Enchantment Creature — Spirit | Whenever a player casts a spell with mana value 3 or less, Eidolon of the Great Revel deals 2 damage to that player. 2/2 |
| Altar of Mogis | Artifact | At the beginning of the Horde's precombat main phase, reveal an additional card from the top of the Horde's library. The Horde casts that card. Hero's Reward — When Altar of Mogis is put into a graveyard from anywhere, the Horde sacrifices two Minotaurs. | |
| Vial Smasher the Fierce | 1BR | Legendary Creature — Goblin Berserker | Whenever you cast your first spell each turn, choose an opponent at random. Vial Smasher the Fierce deals damage equal to that spell's mana value to that player or a planeswalker that player controls. Partner (You can have two commanders if both have partner.) 2/3 |
| Brine Seer | 3U | Creature — Human Wizard | {2}{U}, {T}: Reveal any number of blue cards in your hand. Counter target spell unless its controller pays {1} for each card revealed this way. 1/1 |
| Agent of Raffine | U | Creature — Human Rogue | {2}, {T}: Choose target opponent. Conjure a duplicate of the top card of their library into your hand. It perpetually gains "You may spend mana as though it were mana of any color to cast this spell." Then they exile the top card of their library face down. 1/2 |
| Mezzio Mugger | 4R | Creature — Viashino Rogue | Whenever Mezzio Mugger attacks, exile the top card of each player's library. You may play those cards this turn, and you may spend mana as though it were mana of any color to cast those spells. Blitz {2}{R} (If you cast this spell for its blitz cost, it gains haste and "When this creature dies, draw a card." Sacrifice it at the beginning of the next end step.) 3/3 |
| Charge of the Forever-Beast | 2G | Sorcery | As an additional cost to cast this spell, reveal a creature card from your hand. Charge of the Forever-Beast deals damage to target creature or planeswalker equal to the revealed card's power. |
| Stolen Strategy | 4R | Enchantment | At the beginning of your upkeep, exile the top card of each opponent's library. Until end of turn, you may cast spells from among those exiled cards, and you may spend mana as though it were mana of any color to cast those spells. |
| Kurgadon | 4G | Creature — Beast | Whenever you cast a creature spell with mana value 6 or greater, put three +1/+1 counters on Kurgadon. 3/3 |
| Electrosiphon | UUR | Instant | Counter target spell. You get an amount of {E} (energy counters) equal to its mana value. |