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 |
|---|---|---|---|
| Instrument of the Bards | G | Legendary Artifact | At the beginning of your upkeep, you may put a harmony counter on Instrument of the Bards. {3}{G}, {T}: Search your library for a creature card with mana value equal to the number of harmony counters on Instrument of the Bards, reveal it, and put it into your hand. If that card is legendary, create a Treasure token. Then shuffle. |
| Breeches, the Blastmaker | 1UR | Legendary Creature — Goblin Pirate | Menace Whenever you cast your second spell each turn, you may sacrifice an artifact. If you do, flip a coin. When you win the flip, copy that spell. You may choose new targets for the copy. When you lose the flip, Breeches, the Blastmaker deals damage equal to that spell's mana value to any target. 3/3 |
| My First Tome | 3 | Artifact | {1}, {T}: Say the flavor text on a card in your hand. Target opponent guesses that card's name. You may reveal that card. If you do and they guessed wrong, you draw a card. |
| Ruin Processor | 7 | Creature — Eldrazi Processor | When you cast this spell, you may put a card an opponent owns from exile into that player's graveyard. If you do, you gain 5 life. 7/8 |
| Aid from the Cowl | 3GG | Enchantment | Revolt — At the beginning of your end step, if a permanent you controlled left the battlefield this turn, reveal the top card of your library. If it's a permanent card, you may put it onto the battlefield. Otherwise, you may put it on the bottom of your library. |
| Insidious Dreams | 3B | Instant | As an additional cost to cast this spell, discard X cards. Search your library for X cards, then shuffle and put those cards on top in any order. |
| Surge of Strength | RG | Instant | As an additional cost to cast this spell, discard a red or green card. Target creature gains trample and gets +X/+0 until end of turn, where X is that creature's mana value. |
| 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 |
| Theater of Horrors | 1BR | Enchantment | At the beginning of your upkeep, exile the top card of your library. During your turn, if an opponent lost life this turn, you may play lands and cast spells from among cards exiled with Theater of Horrors. {3}{R}: Theater of Horrors deals 1 damage to target opponent or planeswalker. |
| Rethink | 2U | Instant | Counter target spell unless its controller pays {X}, where X is its mana value. |