M:tG card similarity search
1U · Instant
Counter target spell if its mana value is less than or equal to the highest mana value among permanents you control.
| Name | Mana | Type | Text |
|---|---|---|---|
| Metathran Aerostat | 2UU | Creature — Metathran | Flying {X}{U}: You may put a creature card with mana value X from your hand onto the battlefield. If you do, return Metathran Aerostat to its owner's hand. 2/2 |
| Epic Experiment | XUR | Sorcery | Exile the top X cards of your library. You may cast instant and sorcery spells with mana value X or less from among them without paying their mana costs. Then put all cards exiled this way that weren't cast into your graveyard. |
| Brainstealer Dragon | 5BB | Creature — Dragon Horror | Flying At the beginning of your end step, exile the top card of each opponent's library. You may play those cards for as long as they remain exiled. If you cast a spell this way, you may spend mana as though it were mana of any color to cast it. Whenever a nonland permanent an opponent owns enters the battlefield under your control, they lose life equal to its mana value. 6/6 |
| Wolf of Devil's Breach | 3RR | Creature — Elemental Wolf | Whenever Wolf of Devil's Breach attacks, you may pay {1}{R} and discard a card. If you do, Wolf of Devil's Breach deals damage to target creature or planeswalker equal to the discarded card's mana value. 5/5 |
| Mercadian Lift | 2 | Artifact | {1}, {T}: Put a winch counter on Mercadian Lift. {T}, Remove X winch counters from Mercadian Lift: You may put a creature card with mana value X from your hand onto the battlefield. |
| Battle of Frost and Fire | 3UR | Enchantment — Saga | (As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.) I — Battle of Frost and Fire deals 4 damage to each non-Giant creature and each planeswalker. II — Scry 3. III — Whenever you cast a spell with mana value 5 or greater this turn, draw two cards, then discard a card. |
| Flamethrower Sonata | 1R | Sorcery | Discard a card, then draw a card. When you discard an instant or sorcery card this way, Flamethrower Sonata deals damage equal to that card's mana value to target creature or planeswalker you don't control. |
| Kairi, the Swirling Sky | 4UU | Legendary Creature — Dragon Spirit | Flying, ward {3} When Kairi, the Swirling Sky dies, choose one — • Return any number of target nonland permanents with total mana value 6 or less to their owners' hands. • Mill six cards, then return up to two instant and/or sorcery cards from your graveyard to your hand. 6/6 |
| Knight-Errant of Eos | 4W | Creature — Human Knight | Convoke When Knight-Errant of Eos enters the battlefield, look at the top six cards of your library. You may reveal up to two creature cards with mana value X or less from among them, where X is the number of creatures that convoked Knight-Errant of Eos. Put the revealed cards into your hand, then shuffle. 4/4 |
| Molten Collapse | BR | Sorcery | Choose one. If you descended this turn, you may choose both instead. (You descended if a permanent card was put into your graveyard from anywhere.) • Destroy target creature or planeswalker. • Destroy target noncreature, nonland permanent with mana value 1 or less. |