"If wisdom is a river, then we cup our hands, reach in, and drink from it in sips. The kami, however, are like fish, swimming, breathing, surrounded in its presence." —Dosan the Falling Leaf
Whenever a creature you control deals combat damage to a player, add that much {G}. Until end of turn, you don't lose this mana as steps and phases end.
Exile target enchantment. Search its controller's graveyard, hand, and library for all cards with the same name as that enchantment and exile them. Then that player shuffles.
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.
Whenever a creature with power 1 or less is put into your graveyard from the battlefield, you may return that card to the battlefield at the beginning of the next end step if Shirei, Shizo's Caretaker is still on the battlefield.
Equipped creature has "{T}, 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 {2}
Whenever you cast a Spirit or Arcane spell, you may put a ki counter on Skullmane Baku. {1}, {T}, Remove X ki counters from Skullmane Baku: Target creature gets -X/-X until end of turn.
{2}, Discard a Spirit or Arcane card: Slumbering Tora becomes an X/X Cat artifact creature until end of turn, where X is the discarded card's mana value.
Create two 1/1 green Snake creature tokens. Whenever a nontoken Snake enters the battlefield under your control, you may return Sosuke's Summons from your graveyard to your hand.