M:tG card similarity search
3UU · Enchantment
When Duplicity enters the battlefield, exile the top five cards of your library face down. At the beginning of your upkeep, you may exile all cards from your hand face down. If you do, put all other cards you own exiled with Duplicity into your hand. At the beginning of your end step, discard a card. When you lose control of Duplicity, put all cards exiled with Duplicity into their owner's graveyard.
| Name | Mana | Type | Text |
|---|---|---|---|
| Festering Wound | 1B | Enchantment — Aura | Enchant creature At the beginning of your upkeep, you may put an infection counter on Festering Wound. At the beginning of the upkeep of enchanted creature's controller, Festering Wound deals X damage to that player, where X is the number of infection counters on Festering Wound. |
| The Dark Barony | Plane — Ulgrotha | Whenever a nonblack card is put into a player's graveyard from anywhere, that player loses 1 life. Whenever chaos ensues, each opponent discards a card. | |
| Divergent Transformations | 6R | Instant | Undaunted (This spell costs {1} less to cast for each opponent.) Exile two target creatures. For each of those creatures, its controller reveals cards from the top of their library until they reveal a creature card, puts that card onto the battlefield, then shuffles the rest into their library. |
| Sword of the Ages | 6 | Artifact | Sword of the Ages enters the battlefield tapped. {T}, Sacrifice Sword of the Ages and any number of creatures you control: Sword of the Ages deals X damage to any target, where X is the total power of the creatures sacrificed this way, then exile Sword of the Ages and those creature cards. |
| 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.) |
| Lens of Clarity | 1 | Artifact | You may look at the top card of your library and at face-down creatures you don't control any time. |
| Scalding Tongs | 2 | Artifact | At the beginning of your upkeep, if you have three or fewer cards in hand, Scalding Tongs deals 1 damage to target opponent or planeswalker. |
| Ral's Outburst | 2UR | Instant | Ral's Outburst deals 3 damage to any target. Look at the top two cards of your library. Put one of them into your hand and the other into your graveyard. |
| Cosmium Catalyst | Artifact | {1}{R}, {T}: Choose an exiled card used to craft Cosmium Catalyst at random. You may cast that card without paying its mana cost. | |
| Counterbore | 3UU | Instant | Counter target spell. Search its controller's graveyard, hand, and library for all cards with the same name as that spell and exile them. Then that player shuffles. |