Saviors of Kamigawa

Flying Whenever you cast a Spirit or Arcane spell, you may have target player mill X cards, where X is that spell's mana value.

Flying Whenever you cast a Spirit or Arcane spell, destroy all permanents with that spell's mana value.

As this artifact enters, choose a creature type. Each creature card in your graveyard has the chosen creature type in addition to its other types.

Target creature deals damage to itself equal to its power.

When Kemuri-Onna enters the battlefield, target player discards a card. Whenever you cast a Spirit or Arcane spell, you may return Kemuri-Onna to ...

Soulshift 3 (When this creature dies, you may return target Spirit card with mana value 3 or less from your graveyard to your hand.)

Enchant creature Enchanted creature gets -X/-X, where X is the number of cards in your hand.

Kagemaro, First to Suffer's power and toughness are each equal to the number of cards in your hand. {B}, Sacrifice Kagemaro: All creatures get -X/...

Flying Whenever you cast a Spirit or Arcane spell, target player reveals their hand and discards all cards with that spell's mana value.

{2}{R}, {T}: Ghost-Lit Raider deals 2 damage to target creature. Channel — {3}{R}, Discard Ghost-Lit Raider: It deals 4 damage to target creature.

Gaze of Adamaro deals damage to target player equal to the number of cards in that player's hand.

Create three 3/1 red Elemental creature tokens with haste. Exile them at the beginning of the next end step.

{R}: Target creature gets +1/+0 until end of turn.

When Burning-Eye Zubera dies, if 4 or more damage was dealt to it this turn, Burning-Eye Zubera deals 3 damage to any target.

Sweep — Return any number of Mountains you control to their owner's hand. Barrel Down Sokenzan deals damage to target creature equal to twice the n...

As long as you have seven or more cards in hand, Akki Underling gets +2/+1 and has first strike.

{T}: Target creature gains haste until end of turn.

Adamaro, First to Desire's power and toughness are each equal to the number of cards in the hand of the opponent with the most cards in hand.

At the beginning of your upkeep, return a black creature you control to its owner's hand. {1}{B}: Regenerate Skull Collector.

Search your library for an enchantment card, put it onto the battlefield, then shuffle. Epic (For the rest of the game, you can't cast spells. At ...

Sweep — Return any number of Swamps you control to their owner's hand. Target player discards a card for each Swamp returned this way.

Shinen of Fear's Chill can't block. Channel — {1}{B}, Discard Shinen of Fear's Chill: Target creature can't block this turn.

Black creatures can't block.

When Raving Oni-Slave enters or leaves the battlefield, you lose 3 life if you don't control a Demon.