Spooky20

{2}, Discard a Spirit or Arcane card: This artifact becomes an X/X Cat artifact creature until end of turn, where X is the discarded card's mana va...

Ninjutsu {B} ({B}, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.) Whene...

Whenever you cast a Spirit or Arcane spell, you may put a ki counter on this creature. {1}, {T}, Remove X ki counters from this creature: Target cr...

Flash Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.)

You may exile a black card with mana value X from your hand rather than pay this spell's mana cost. Target creature gets -X/-X until end of turn.

Equipped creature has "{T}, Unattach Shuriken: Shuriken deals 2 damage to target creature. That creature's controller gains control of Shuriken unl...

Equipped creature gets +1/+0. Equip {0} ({0}: Attach to target creature you control. Equip only as a sorcery.)

At the beginning of each player's upkeep, that player adds {G}{G}{G}. Until end of turn, they don't lose this mana as steps and phases end.

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 beginn...

Whenever this creature is dealt damage, it deals that much damage to you.

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 ...

Flying Whenever this creature becomes the target of a spell or ability for the first time each turn, counter that spell or ability.

At the beginning of your upkeep, you lose 2 life if you don't control an Ogre.

Exile target enchantment. Search its controller's graveyard, hand, and library for all cards with the same name as that enchantment and exile them....

Whenever you cast a Spirit or Arcane spell, this creature gets +2/+2 until end of turn.

At the beginning of your upkeep, add {G}. Until end of turn, you don't lose this mana as steps and phases end.

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...

Equipped creature gets +2/+1. Whenever a creature you control enters, attach this Equipment to that creature. Equip {5} ({5}: Attach to target crea...

Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.) Whenever this creature attacks, you may have it deal...

Ninjutsu {3}{B} ({3}{B}, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)...

Whenever Ogre Marauder attacks, it gains "Ogre Marauder can't be blocked" until end of turn unless defending player sacrifices a creature.

Sacrifice Nezumi Shadow-Watcher: Destroy target Ninja.

Enchant creature You control enchanted creature. At the beginning of the end step, if you control no Demons, sacrifice Mark of the Oni.

Whenever you cast a Spirit or Arcane spell, target opponent exiles a card from their hand.