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 |
|---|---|---|---|
| Automated Assembly Line | 1W | Artifact | Whenever one or more artifact creatures you control deal combat damage to a player, you get {E} (an energy counter). Pay {E}{E}{E}: Create a tapped 3/3 colorless Robot artifact creature token. |
| Scythe Specter | 4BB | Creature — Specter | Flying Whenever Scythe Specter deals combat damage to a player, each opponent discards a card. Each player who discarded a card with the highest mana value among cards discarded this way loses life equal to that mana value. 4/4 |
| Charnelhoard Wurm | 4BRG | Creature — Wurm | Trample Whenever Charnelhoard Wurm deals damage to an opponent, you may return target card from your graveyard to your hand. 6/6 |
| Ogre Battlecaster | 2R | Creature — Ogre Shaman | First strike Whenever Ogre Battlecaster attacks, you may cast target instant or sorcery card from your graveyard by paying {R}{R} in addition to its other costs. If that spell would be put into a graveyard, exile it instead. When you cast that spell, Ogre Battlecaster gets +X/+0 until end of turn, where X is that spell's mana value. 3/3 |
| Darkblade Agent | 1UB | Creature — Human Assassin | As long as you've surveilled this turn, Darkblade Agent has deathtouch and "Whenever this creature deals combat damage to a player, you draw a card." 2/3 |
| Maddening Hex | 1RR | Enchantment — Aura Curse | Enchant player Whenever enchanted player casts a noncreature spell, roll a d6. Maddening Hex deals damage to that player equal to the result. Then attach Maddening Hex to another one of your opponents chosen at random. |
| Izzet Keyrune | 3 | Artifact | {T}: Add {U} or {R}. {U}{R}: Until end of turn, Izzet Keyrune becomes a 2/1 blue and red Elemental artifact creature. Whenever Izzet Keyrune deals combat damage to a player, you may draw a card. If you do, discard a card. |
| Spelltwine | 5U | Sorcery | Exile target instant or sorcery card from your graveyard and target instant or sorcery card from an opponent's graveyard. Copy those cards. Cast the copies if able without paying their mana costs. Exile Spelltwine. |
| As Foretold | 2U | Enchantment | At the beginning of your upkeep, put a time counter on As Foretold. Once each turn, you may pay {0} rather than pay the mana cost for a spell you cast with mana value X or less, where X is the number of time counters on As Foretold. |
| Bringer of the Black Dawn | 7BB | Creature — Bringer | You may pay {W}{U}{B}{R}{G} rather than pay this spell's mana cost. Trample At the beginning of your upkeep, you may pay 2 life. If you do, search your library for a card, then shuffle and put that card on top. 5/5 |