M:tG card similarity search
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
| Name | Mana | Type | Text |
|---|---|---|---|
| Memory Plunder | U/BU/BU/BU/B | Instant | You may cast target instant or sorcery card from an opponent's graveyard without paying its mana cost. |
| Darksteel Monolith | 8 | Artifact | Indestructible Once each turn, you may pay {0} rather than pay the mana cost for a colorless spell that you cast from your hand. |
| Valiant Batrider | 2W | Creature — Human Knight | Flying Whenever Valiant Batrider deals combat damage to a player, that player gets a one-time boon with "When you cast a noncreature spell, you may pay {1}. If you don't, each opponent draws a card." 3/3 |
| Kheru Mind-Eater | 2B | Creature — Vampire | Menace Whenever Kheru Mind-Eater deals combat damage to a player, that player exiles a card from their hand face down. You may look at cards exiled with Kheru Mind-Eater, and you may play lands and cast spells from among those cards. 1/3 |
| Time Beetle | 1U | Creature — Alien Insect | Skulk (This creature can't be blocked by creatures with greater power.) Parallel Universe — Whenever Time Beetle deals combat damage to a player, time travel. (For each suspended card you own and each permanent you control with a time counter on it, you may add or remove a time counter.) 1/1 |
| Oros, the Avenger | 3RWB | Legendary Creature — Dragon | Flying Whenever Oros, the Avenger deals combat damage to a player, you may pay {2}{W}. If you do, Oros deals 3 damage to each nonwhite creature. 6/6 |
| Surge to Victory | 4RR | Sorcery | Exile target instant or sorcery card from your graveyard. Creatures you control get +X/+0 until end of turn, where X is that card's mana value. Whenever a creature you control deals combat damage to a player this turn, copy the exiled card. You may cast the copy without paying its mana cost. |
| Wagon Wrecker | 1R | Creature — Ogre Mercenary | Menace Whenever Wagon Wrecker deals combat damage to a player, a random nonland card in that player's hand perpetually gains "When you cast this spell, you lose 2 life." 2/1 |
| Massacre | 2BB | Sorcery | If an opponent controls a Plains and you control a Swamp, you may cast this spell without paying its mana cost. All creatures get -2/-2 until end of turn. |
| Swindler's Scheme | 2U | Enchantment | Whenever an opponent casts a spell from their hand, you may reveal the top card of your library. If it shares a card type with that spell, counter that spell and that opponent may cast the revealed card without paying its mana cost. |