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 |
|---|---|---|---|
| Mana Short | 2U | Instant | Tap all lands target player controls and that player loses all unspent mana. |
| Temporal Aperture | 2 | Artifact | {5}, {T}: Shuffle your library, then reveal the top card. Until end of turn, for as long as that card remains on top of your library, play with the top card of your library revealed and you may play that card without paying its mana cost. (If it has X in its mana cost, X is 0.) |
| Concert Kaboomist | 1RR | Creature — Goblin Artificer | Trample When Concert Kaboomist enters the battlefield or is turned face up, it deals X damage to target opponent, where X is the number of noncreature spells you've cast since the beginning of your last turn. Disguise {R} 4/2 |
| Magmaquake | XRR | Instant | Magmaquake deals X damage to each creature without flying and each planeswalker. |
| Customs Depot | 1U | Enchantment | Whenever you cast a creature spell, you may pay {1}. If you do, draw a card, then discard a card. |
| Justice | 2WW | Enchantment | At the beginning of your upkeep, sacrifice Justice unless you pay {W}{W}. Whenever a red creature or spell deals damage, Justice deals that much damage to that creature's or spell's controller. |
| Super-Duper Lost | 4U | Instant | Put target creature into its owner's library just beneath the top X cards of that library, where X is the number of doors you can see from your seat. |
| Kresh the Bloodbraided | 2BRG | Legendary Creature — Human Warrior | Whenever another creature dies, you may put X +1/+1 counters on Kresh the Bloodbraided, where X is that creature's power. 3/3 |
| Cavern of Souls | Land | As Cavern of Souls enters the battlefield, choose a creature type. {T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast a creature spell of the chosen type, and that spell can't be countered. | |
| Papercraft Decoy | 2 | Artifact Creature — Frog | When Papercraft Decoy leaves the battlefield, you may pay {2}. If you do, draw a card. 2/1 |