M:tG card similarity search
· Plane — Karsus
Whenever a player casts a spell, that player flips a coin. If the player loses the flip, counter that spell. Whenever chaos ensues, target player reveals the top card of their library. If it's a nonland card, you may cast it without paying its mana cost.
| Name | Mana | Type | Text |
|---|---|---|---|
| Spellshift | 3U | Instant | Counter target instant or sorcery spell. Its controller reveals cards from the top of their library until they reveal an instant or sorcery card. That player may cast that card without paying its mana cost. Then the player shuffles. |
| Mindclaw Shaman | 4R | Creature — Viashino Shaman | When Mindclaw Shaman enters the battlefield, target opponent reveals their hand. You may cast an instant or sorcery spell from among those cards without paying its mana cost. 2/2 |
| 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. | |
| 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.) |
| Silent-Blade Oni | 3UUBB | Creature — Demon Ninja | Ninjutsu {4}{U}{B} ({4}{U}{B}, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.) Whenever Silent-Blade Oni deals combat damage to a player, look at that player's hand. You may cast a spell from among those cards without paying its mana cost. 6/5 |
| Amulet of Quoz | 6 | Artifact | Remove Amulet of Quoz from your deck before playing if you're not playing for ante. {T}, Sacrifice Amulet of Quoz: Target opponent may ante the top card of their library. If they don't, you flip a coin. If you win the flip, that player loses the game. If you lose the flip, you lose the game. Activate only during your upkeep. |
| Chancellor of the Annex | 4WWW | Creature — Phyrexian Angel | You may reveal this card from your opening hand. If you do, when each opponent casts their first spell of the game, counter that spell unless that player pays {1}. Flying Whenever an opponent casts a spell, counter it unless that player pays {1}. 5/6 |
| Sarevok's Tome | 4 | Artifact | When Sarevok's Tome enters the battlefield, you take the initiative. {T}: Add {C}. If you have the initiative, add {C}{C} instead. {3}, {T}: Exile cards from the top of your library until you exile a nonland card. You may cast that card without paying its mana cost. Activate only if you've completed a dungeon. |
| Mogg Salvage | 2R | Instant | If an opponent controls an Island and you control a Mountain, you may cast this spell without paying its mana cost. Destroy target artifact. |
| Smolder Initiate | B | Creature — Elemental Shaman | Whenever a player casts a black spell, you may pay {1}. If you do, target player loses 1 life. 1/1 |