M:tG card similarity search
XUU · Instant — Arcane
You may exile a blue card with mana value X from your hand rather than pay this spell's mana cost. Counter target spell if its mana value is X.
| Name | Mana | Type | Text |
|---|---|---|---|
| Training Grounds | U | Enchantment | Activated abilities of creatures you control cost {2} less to activate. This effect can't reduce the mana in that cost to less than one mana. |
| Infernal Darkness | 2BB | Enchantment | Cumulative upkeep—Pay {B} and 1 life. (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) If a land is tapped for mana, it produces {B} instead of any other type. |
| Forensic Gadgeteer | 2U | Creature — Vedalken Artificer Detective | Whenever you cast an artifact spell, investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.") Activated abilities of artifacts you control cost {1} less to activate. This effect can't reduce the mana in that cost to less than one mana. 2/3 |
| Turntimber Symbiosis | 4GGG | Sorcery | Look at the top seven cards of your library. You may put a creature card from among them onto the battlefield. If that card has mana value 3 or less, it enters with three additional +1/+1 counters on it. Put the rest on the bottom of your library in a random order. |
| Apex Observatory | Artifact | Apex Observatory enters the battlefield tapped. As it enters, choose a card type shared among two exiled cards used to craft it. {T}: The next spell you cast this turn of the chosen type can be cast without paying its mana cost. | |
| Liliana, Defiant Necromancer | Legendary Planeswalker — Liliana | [+2]: Each player discards a card. [−X]: Return target nonlegendary creature card with mana value X from your graveyard to the battlefield. [−8]: You get an emblem with "Whenever a creature dies, return it to the battlefield under your control at the beginning of the next end step." Loyalty 3 | |
| Sickening Dreams | 1B | Sorcery | As an additional cost to cast this spell, discard X cards. Sickening Dreams deals X damage to each creature and each player. |
| Quicksilver Sea | Plane — Mirrodin | When you planeswalk to Quicksilver Sea or at the beginning of your upkeep, scry 4. (Look at the top four cards of your library, then put any number of them on the bottom of your library and the rest on top in any order.) Whenever chaos ensues, reveal the top card of your library. You may play it without paying its mana cost. | |
| Mnemonic Deluge | 6UUU | Sorcery | Exile target instant or sorcery card from a graveyard. Copy that card three times. You may cast the copies without paying their mana costs. Exile Mnemonic Deluge. |
| Defiler of Instinct | 2RR | Creature — Phyrexian Kavu | First strike As an additional cost to cast red permanent spells, you may pay 2 life. Those spells cost {R} less to cast if you paid life this way. This effect reduces only the amount of red mana you pay. Whenever you cast a red permanent spell, Defiler of Instinct deals 1 damage to any target. 4/4 |