When you cast this spell, draw four cards.
Annihilator 4 (Whenever this creature attacks, defending player sacrifices four permanents of their choice.)
When Kozilek is put into a graveyard from anywhere, its owner shuffles their graveyard into their library.

Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)
Sliver spells you cast have cascade.

Destroy target artifact or enchantment.

Reveal the top card of your library and put that card into your hand. You lose life equal to its mana value. You may repeat this process any number of times.

(: Add .)

Reach, vigilance
Lumra's power and toughness are each equal to the number of lands you control.
When Lumra enters, mill four cards. Then return all land cards from your graveyard to the battlefield tapped.

Zombies you control get +1/+1.
: Target creature card in your graveyard gains embalm until end of turn. The embalm cost is equal to its mana cost. (Exile that card and pay its embalm cost: Create a token that's a copy of it, except it's a white Zombie in addition to its other types and has no mana cost. Embalm only as a sorcery.)

, : This artifact deals 4 damage to any target.

Sisay gets +1/+1 for each color among other legendary permanents you control.
: Search your library for a legendary permanent card with mana value less than Sisay's power, put that card onto the battlefield, then shuffle.

Sacrifice this creature: Prevent all combat damage that would be dealt this turn.

This spell costs less to cast, where X is the greatest power among creatures you control.
: Add . You gain 2 life.
Whenever a nontoken creature you control enters, put a +1/+1 counter on it and draw a card.

Players skip their untap steps.
At the beginning of your upkeep, sacrifice this enchantment unless you pay .

Look at the top seven cards of your library. Put two of them into your hand and the rest into your graveyard.

Exile target creature. Its controller gains life equal to its power.

Whenever an opponent casts a spell, you may draw a card unless that player pays .

+1: Untap up to two target artifacts.
−X: Search your library for an artifact card with mana value X or less, put it onto the battlefield, then shuffle.
−5: Artifacts you control become artifact creatures with base power and toughness 5/5 until end of turn.

: Look at the top three cards of your library, then put them back in any order.
: Draw a card, then put this artifact on top of its owner's library.

Equipped creature gets +1/-1.
Whenever equipped creature dies, draw two cards.
Equip

Equipped creature gets +1/+1 and has trample and lifelink.
: Permanents your opponents control lose hexproof and indestructible until end of turn.
Equip

Black creatures get +1/+1.