M:tG card similarity search
1 · Artifact
Whenever a player casts a blue spell, you may pay {1}. If you do, you gain 1 life.
| Name | Mana | Type | Text |
|---|---|---|---|
| Diffusion Sliver | 1U | Creature — Sliver | Whenever a Sliver creature you control becomes the target of a spell or ability an opponent controls, counter that spell or ability unless its controller pays {2}. 1/1 |
| A Good Thing | 4WB | Enchantment | Spells and abilities you control can't destroy, exile, target, or cause you to sacrifice A Good Thing. At the beginning of your upkeep, double your life total. Then, if you have 1,000 or more life, you lose the game. |
| Tapestry of the Ages | 4 | Artifact | {2}, {T}: Draw a card. Activate only if you've cast a noncreature spell this turn. |
| Runeboggle | 2U | Instant | Counter target spell unless its controller pays {1}. Draw a card. |
| Chancellor of Tales | 3U | Creature — Faerie Advisor | Flying Whenever you cast an Adventure spell, you may copy it. You may choose new targets for the copy. 2/3 |
| 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 |
| Numot, the Devastator | 3URW | Legendary Creature — Dragon | Flying Whenever Numot, the Devastator deals combat damage to a player, you may pay {2}{R}. If you do, destroy up to two target lands. 6/6 |
| One with the Multiverse | 6UU | Enchantment | You may look at the top card of your library any time. You may play lands and cast spells from the top of your library. Once during each of your turns, you may cast a spell from your hand or the top of your library without paying its mana cost. |
| Kefnet's Monument | 3 | Legendary Artifact | Blue creature spells you cast cost {1} less to cast. Whenever you cast a creature spell, target creature an opponent controls doesn't untap during its controller's next untap step. |
| Plague Drone | 3B | Creature — Demon | Flying Rot Fly — If an opponent would gain life, that player loses that much life instead. 3/3 |