M:tG card similarity search
| Name | Mana | Type | Text |
|---|---|---|---|
| Mindswipe | XUR | Instant | Counter target spell unless its controller pays {X}. Mindswipe deals X damage to that spell's controller. |
| Induce Paranoia | 2UU | Instant | Counter target spell. If {B} was spent to cast this spell, that spell's controller mills X cards, where X is the spell's mana value. |
| Overwhelming Denial | 2UU | Instant | Surge {U}{U} (You may cast this spell for its surge cost if you or a teammate has cast another spell this turn.) This spell can't be countered. Counter target spell. |
| Last Word | 2UU | Instant | This spell can't be countered. Counter target spell. |
| Flare of Denial | 1UU | Instant | You may sacrifice a nontoken blue creature rather than pay this spell's mana cost. Counter target spell. |
| Amulet of Safekeeping | 2 | Artifact | Whenever you become the target of a spell or ability an opponent controls, counter that spell or ability unless its controller pays {1}. Creature tokens get -1/-0. |
| Ghost-Lit Warder | 1U | Creature — Spirit | {3}{U}, {T}: Counter target spell unless its controller pays {2}. Channel — {3}{U}, Discard Ghost-Lit Warder: Counter target spell unless its controller pays {4}. 1/1 |
| Unsettled Mariner | WU | Creature — Shapeshifter | Changeling (This card is every creature type.) Whenever you or a permanent you control becomes the target of a spell or ability an opponent controls, counter that spell or ability unless its controller pays {1}. 2/2 |
| Countervailing Winds | 2U | Instant | Counter target spell unless its controller pays {1} for each card in your graveyard. Cycling {2} ({2}, Discard this card: Draw a card.) |
| Thassa's Rebuff | 1U | Instant | Counter target spell unless its controller pays {X}, where X is your devotion to blue. (Each {U} in the mana costs of permanents you control counts toward your devotion to blue.) |