Search your library and graveyard for five cards and exile the rest. Put the chosen cards on top of your library in any order. You lose half your life, rounded up.

When The Meathook Massacre enters, each creature gets -X/-X until end of turn.
Whenever a creature you control dies, each opponent loses 1 life.
Whenever a creature an opponent controls dies, you gain 1 life.

Whenever a nontoken permanent is put into a player's graveyard from the battlefield, that player loses 1 life.

Ward (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays .)
Three Autostubs — Whenever another source you control deals exactly 1 damage to a permanent or player, Ghyrson Starn deals 2 damage to that permanent or player.

You may play lands from your graveyard.

As Chronicle of Victory enters, choose a creature type.
Creatures you control of the chosen type get +2/+2 and have first strike and trample.
Whenever you cast a spell of the chosen type, draw a card.

, : Destroy target white creature.

Sacrifice this creature: Destroy target nonbasic land.

Vigilance
Whenever Nadaar enters or attacks, venture into the dungeon. (Enter the first room or advance to the next room.)
Other creatures you control get +1/+1 as long as you've completed a dungeon.

Whenever a creature you control dies, each other player sacrifices a creature of their choice.

+2: You may sacrifice another permanent. If you do, you gain 1 life and draw a card.
−3: Destroy target nonland permanent with mana value 3 or less.
−9: You get an emblem with "Whenever a creature you control deals combat damage to a player, that player loses the game."

Partner with Okaun, Eye of Chaos (When this creature enters, target player may put Okaun into their hand from their library, then shuffle.)
At the beginning of combat on your turn, flip a coin until you lose a flip.
Whenever a player wins a coin flip, draw a card.

Search your library for a green creature card with mana value X or less, put it onto the battlefield, then shuffle. Shuffle Green Sun's Zenith into its owner's library.

, Pay 1 life, Sacrifice this land: Search your library for a Mountain or Plains card, put it onto the battlefield, then shuffle.

You may play an additional land on each of your turns.

Sacrifice this creature: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Annihilator 1 (Whenever this creature attacks, defending player sacrifices a permanent of their choice.)
: Create two 0/1 colorless Eldrazi Spawn creature tokens. They have "Sacrifice this token: Add ."
: Cast any number of Eldrazi spells from among cards you own outside the game without paying their mana costs.

Indestructible
As long as your devotion to blue and black is less than seven, Phenax isn't a creature.
Creatures you control have ": Target player mills X cards, where X is this creature's toughness."

Target permanent you control gains hexproof and indestructible until end of turn. You gain 2 life. (A permanent with hexproof and indestructible can't be the target of spells or abilities your opponents control. Damage and effects that say "destroy" don't destroy it.)

, Sacrifice this artifact: Add one mana of any color.