Saviors of Kamigawa

All creatures get -X/-0, where X is the number of cards in your hand.

Equipped creature gets +1/+2 and has "{T}: Destroy target Equipment." Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)

Maga enters with X +1/+1 counters on it. When Maga enters, target player loses life equal to the number of +1/+1 counters on it.

All artifacts have "At the beginning of your upkeep, sacrifice this artifact unless you pay {1}."

At the beginning of each player's draw step, that player draws an additional card.

{X}{R}, {T}: Jiwari deals X damage to target creature without flying. Channel — {X}{R}{R}{R}, Discard this card: It deals X damage to each creature...

At the beginning of your upkeep, if you have seven or more cards in hand, you gain 4 life.

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

Search target opponent's library for an artifact, creature, enchantment, or land card. Put that card onto the battlefield under your control. Then ...

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 t...

Create a 1/1 green Snake creature token for each card in your hand. Epic (For the rest of the game, you can't cast spells. At the beginning of each...

At the beginning of each opponent's upkeep, if that player has seven or more cards in hand, this artifact deals 4 damage to that player.

Return X target creature cards from your graveyard to your hand.

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.