M:tG card similarity search
XU · Instant
Counter target spell with mana value X. (For example, if that spell's mana cost is {3}{U}{U}, X is 5.)
| Name | Mana | Type | Text |
|---|---|---|---|
| Spotter Thopter | 8 | Artifact Creature — Thopter | Prototype {3}{U} — 2/3 (You may cast this spell with different mana cost, color, and size. It keeps its abilities and types.) Flying When Spotter Thopter enters the battlefield, scry X, where X is its power. 4/5 |
| Cobra Trap | 4GG | Instant — Trap | If a noncreature permanent under your control was destroyed this turn by a spell or ability an opponent controlled, you may pay {G} rather than pay this spell's mana cost. Create four 1/1 green Snake creature tokens. |
| Well of Lost Dreams | 4 | Artifact | Whenever you gain life, you may pay {X}, where X is less than or equal to the amount of life you gained. If you do, draw X cards. |
| Chain Reaction | 2RR | Sorcery | Chain Reaction deals X damage to each creature, where X is the number of creatures on the battlefield. |
| Decisive Denial | GU | Instant | Choose one — • Target creature you control fights target creature you don't control. (Each deals damage equal to its power to the other.) • Counter target noncreature spell unless its controller pays {3}. |
| Snapback | 1U | Instant | You may exile a blue card from your hand rather than pay this spell's mana cost. Return target creature to its owner's hand. |
| Ominous Lockbox | 1U | Artifact — Clue | As Ominous Lockbox enters the battlefield, secretly choose a number between 1 and 20. When an opponent casts a spell with mana value equal to the chosen number, sacrifice Ominous Lockbox. If you do, copy that spell, and you may choose new targets for the copy. {2}, Sacrifice Ominous Lockbox: Draw a card. |
| Reap | 1G | Instant | Return up to X target cards from your graveyard to your hand, where X is the number of black permanents target opponent controls as you cast this spell. |
| Presence of the Master | 3W | Enchantment | Whenever a player casts an enchantment spell, counter it. |
| Ugin's Labyrinth | Land | Imprint — When Ugin's Labyrinth enters the battlefield, you may exile a colorless card with mana value 7 or greater from your hand. {T}: Add {C}. If a card is exiled with Ugin's Labyrinth, add {C}{C} instead. {T}: Return the exiled card to its owner's hand. |