Whenever you cast a Spirit or Arcane spell, you may search your library for an Aura card with enchant creature, reveal it, put it into your hand, then shuffle.
Reveal the top X cards of your library. Put all creature cards revealed this way into your hand and the rest on the bottom of your library in any order.
Create two 1/1 green Snake creature tokens.Whenever a nontoken Snake you control enters, you may return Sosuke's Summons from your graveyard to your hand.
Each player shuffles their hand, graveyard, and all permanents they own into their library, then draws seven cards. Each player's life total becomes 7.
Enchant creatureEnchanted creature has "Whenever this creature deals combat damage to a player, add that much . Until end of turn, you don't lose this mana as steps and phases end."
Each time target permanent would deal damage to a permanent or player this turn, it deals double that damage to that permanent or player instead.Splice onto Arcane (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)
Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.)Whenever a Samurai you control dies, you may put a +1/+1 counter on Indebted Samurai.
Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.)Whenever a creature an opponent controls dies, you may cast target instant card from your graveyard. If that spell would be put into a graveyard, exile it instead.
Whenever equipped creature deals damage to a creature, tap that creature. That creature doesn't untap during its controller's untap step for as long as Neko-Te remains on the battlefield.Whenever equipped creature deals damage to a player, that player loses 1 life.Equip
You may exile a white card with mana value X from your hand rather than pay this spell's mana cost.The next X damage that a source of your choice would deal to you and/or creatures you control this turn is dealt to any target instead.
Flames of the Blood Hand deals 4 damage to target player or planeswalker. The damage can't be prevented. If that player or that planeswalker's controller would gain life this turn, that player gains no life instead.
Ninjutsu (, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)Whenever Throat Slitter deals combat damage to a player, destroy target nonblack creature that player controls.
Defender (This creature can't attack.)Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.): The next time a source of your choice would deal damage this turn, that damage is dealt to Opal-Eye, Konda's Yojimbo instead.: Prevent the next 1 damage that would be dealt to Opal-Eye this turn.
You and target opponent each gain control of all creatures the other controls until end of turn. Untap those creatures. Those creatures gain haste until end of turn.
Ninjutsu (, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)Whenever Ninja of the Deep Hours deals combat damage to a player, you may draw a card.
Defender (This creature can't attack.)Whenever Kaijin of the Vanishing Touch blocks a creature, return that creature to its owner's hand at end of combat. (Return it only if it's on the battlefield.)
Equipped creature gets +2/+1.Whenever a creature you control enters, attach Ronin Warclub to that creature.Equip (: Attach to target creature you control. Equip only as a sorcery.)
Whenever you cast a Spirit or Arcane spell, you may put a ki counter on Baku Altar., , Remove a ki counter from Baku Altar: Create a 1/1 colorless Spirit creature token.
Enchant Plains: Until end of turn, enchanted Plains becomes a 2/5 white Spirit creature with "Whenever this creature deals damage, its controller gains that much life." It's still a land.When enchanted Plains is put into a graveyard, you may return Genju of the Fields from your graveyard to your hand.
Equipped creature has ", Unattach Shuriken: Shuriken deals 2 damage to target creature. That creature's controller gains control of Shuriken unless it was unattached from a Ninja."Equip (: Attach to target creature you control. Equip only as a sorcery.)
Soulshift 4, soulshift 4 (When this creature dies, you may return up to two target Spirit cards with mana value 4 or less from your graveyard to your hand.)
Ninjutsu (, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)Whenever Walker of Secret Ways deals combat damage to a player, look at that player's hand.: Return target Ninja you control to its owner's hand. Activate only during your turn.
Moonfolk offering (You may cast this spell any time you could cast an instant by sacrificing a Moonfolk and paying the difference in mana costs between this and the sacrificed Moonfolk. Mana cost includes color.)Flying: Put up to two land cards from your hand onto the battlefield tapped.