Hideaway 5
Whenever you cast a multicolored spell, create a Treasure token. Then you may pay . If you do, you may play the exiled card without paying its mana cost.

Whenever a spell or ability causes its controller to shuffle their library, that player puts a card from their hand on top of their library.

Amass Zombies 2, then the Army you amassed deals damage equal to its power to each non-Army creature.

When this creature enters, mill three cards. When you do, target creature an opponent controls gets -X/-X until end of turn, where X is the greatest mana value among cards in your graveyard.

Defender
You may look at the top card of your library any time.
You may cast creature spells from the top of your library.
Whenever you cast a creature spell from your library, it becomes a black Bird in addition to its other colors and types, has flying, and has base power and toughness 1/1.

Whenever one or more -1/-1 counters are put on a creature, put a charge counter on this artifact.
: Add one mana of any color.
, , Sacrifice this artifact: Create X tapped 2/2 colorless Scarecrow artifact creature tokens, where X is the number of charge counters on this artifact.

Delirium — Whenever this creature attacks, if there are four or more card types among cards in your graveyard, look at the top card of your library. If it's a land card, you may put it onto the battlefield. If you don't put the card onto the battlefield, put it into your hand.

You may cast this card from your graveyard by paying 2 life and sacrificing an artifact or creature in addition to paying its other costs.

This creature enters with a -1/-1 counter on it.
, Remove a -1/-1 counter from this creature: Destroy target artifact or enchantment.

Whenever this creature attacks or blocks, put a -1/-1 counter on it at end of combat.

Creature spells you cast have sticker kicker . (You may pay an additional as you cast a creature spell. If you do, you get , then you may put a sticker on it.)

When this creature enters, it fights up to one target creature you don't control.
Sacrifice a Food: Put a +1/+1 counter on this creature. It gains indestructible until end of turn. Tap it.

Whenever an enchantment you control is put into a graveyard from the battlefield, each opponent loses 1 life.

Convoke
Tap up to two target creatures. Put a stun counter on either of them. Then put a stun counter on either of them.

As an additional cost to cast this spell, sacrifice a creature.
Target creature gets +4/+2 until end of turn.

Destroy two target nonblack creatures. You lose 5 life.

When this creature enters, you may have it deal 2 damage to another creature you control. If you do, draw a card.

: Target player dealt damage by this creature this turn loses 1 life.

Enchant creature
Enchanted creature gets +1/+1.
When this Aura is put into a graveyard from the battlefield, each opponent loses 1 life.

Whenever Wick or another Rat you control enters, create a 1/1 black Snail creature token if you don't control a Snail. Otherwise, put a +1/+1 counter on a Snail you control.
, Sacrifice a Snail: Wick deals damage equal to the sacrificed creature's power to each opponent. Then draw cards equal to the sacrificed creature's power.

Whenever you cast a noncreature spell, exile the top card of your library. Until your next end step, you may play that card.

Flying
Whenever you cast a noncreature spell, exile another target nonland, nontoken permanent. Return that card to the battlefield under its owner's control at the beginning of the next end step.

Time travel.
Draw a card.

Rulebreaker — A deck with this commander has no maximum deck size.
, : You draw a card and gain 1 life. This ability costs less to activate if you had 200 or more cards in your starting deck.

Choose one at random. Create a token that's a copy of the chosen card.
• Elesh Norn, Mother of Machines
• Jin-Gitaxias, Progress Tyrant
• Sheoldred, the Apocalypse
• Urabrask, Heretic Praetor
• Vorinclex, Monstrous Raider
• Ebon Praetor

Kicker
Return target nonland permanent to its owner's hand. If this spell was kicked, draw a card.

Constellation — Whenever this creature or another enchantment you control enters, target creature can't be blocked this turn.

You gain 5 life.