M:tG card similarity search
2G · Enchantment
Whenever you cast a permanent spell with a mana cost that contains {X}, double the value of X. Whenever you cast an instant or sorcery spell or activate an ability, if that spell's mana cost or that ability's activation cost contains {X}, copy that spell or ability. You may choose new targets for the copy.
| Name | Mana | Type | Text |
|---|---|---|---|
| Command the Chaff | 4UU | Instant | Look at target opponent's sideboard. You may cast a card from that sideboard without paying its mana cost. Exile Command the Chaff. |
| Dream Devourer | 1B | Creature — Demon Cleric | Each nonland card in your hand without foretell has foretell. Its foretell cost is equal to its mana cost reduced by {2}. (During your turn, you may pay {2} and exile it from your hand face down. Cast it on a later turn for its foretell cost.) Whenever you foretell a card, Dream Devourer gets +2/+0 until end of turn. 0/3 |
| Petrahydrox | 3U/R | Creature — Weird | ({U/R} can be paid with either {U} or {R}.) When Petrahydrox becomes the target of a spell or ability, return Petrahydrox to its owner's hand. 3/3 |
| Ground Seal | 1G | Enchantment | When Ground Seal enters the battlefield, draw a card. Cards in graveyards can't be the targets of spells or abilities. |
| Artificer's Assistant | U | Creature — Bird | Flying Whenever you cast a historic spell, scry 1. (Artifacts, legendaries, and Sagas are historic. To scry 1, look at the top card of your library, then you may put that card on the bottom of your library.) 1/1 |
| Locket of Yesterdays | 1 | Artifact | Spells you cast cost {1} less to cast for each card with the same name as that spell in your graveyard. |
| Blue Sun's Twilight | XUU | Sorcery | Gain control of target creature with mana value X or less. If X is 5 or more, create a token that's a copy of that creature. |
| Richard Garfield, Ph.D. | 3UU | Legendary Creature — Human Designer | You may play cards as though they were other cards of your choice with the same mana cost. You can't choose the same card twice. (Mana cost includes color.) 2/2 |
| Absorb Energy | 1UU | Instant | Counter target spell. Cards in your hand that share a card type with that spell perpetually gain "This spell costs {1} less to cast." |
| Scattering Stroke | 2UU | Instant | Counter target spell. Clash with an opponent. If you win, at the beginning of your next main phase, you may add an amount of {C} equal to that spell's mana value. (Each clashing player reveals the top card of their library, then puts that card on the top or bottom. A player wins if their card had a higher mana value.) |