Each player shuffles their hand and graveyard into their library, then draws seven cards. Exile Time Reversal.

Dragonfire Dive — During your turn, Dion and other Knights you control have flying.
When Dion enters, create a 2/2 white Knight creature token.
, : Exile Dion, then return it to the battlefield transformed under its owner's control. Activate only as a sorcery.

(: Add .)

When this enchantment enters, create three Treasure tokens. (They're artifacts with ", Sacrifice this token: Add one mana of any color.")
Sacrifice a Treasure: Exile the top card of your library. You may play it this turn.

Create a 6/6 black and red Dragon creature token with flying, menace, and "Whenever this token deals combat damage to a player, gain control of target artifact that player controls."
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Whenever a player casts a spell, that player flips a coin. If the player loses the flip, counter that spell.
Whenever chaos ensues, target player reveals the top card of their library. If it's a nonland card, you may cast it without paying its mana cost.

Whenever you cast a white spell, put a +1/+1 counter on each legendary creature you control. They gain vigilance until end of turn.
Whenever you cast a black spell, put a +1/+1 counter on each legendary creature you control. They gain menace until end of turn.

Equipped creature gets +1/+0 and has haste and ward . (Whenever it becomes the target of a spell or ability an opponent controls, counter it unless that player pays .)
Equip

When Joshua enters, discard up to two cards, then draw that many cards.
, : Exile Joshua, then return it to the battlefield transformed under its owner's control. Activate only as a sorcery.

Counter target spell.

Boltwave deals 3 damage to each opponent.

If this card is in your opening hand, you may begin the game with it on the battlefield.
If a card would be put into an opponent's graveyard from anywhere, exile it instead.

Draw X cards, where X is the greatest power among creatures you controlled as you cast this spell. If this spell was cast from exile, you gain twice X life.
Foretell (During your turn, you may pay and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)

Whenever a creature an opponent controls dies, put a number of +1/+1 counters on Vincent Valentine equal to that creature's power.
Whenever Vincent Valentine attacks, you may transform it.

Vigilance, ward
Whenever you cast a Kraken, Leviathan, Octopus, or Serpent spell from your hand, look at the top X cards of your library, where X is that spell's mana value. You may cast a spell with mana value less than X from among them without paying its mana cost. Put the rest on the bottom of your library in a random order.

+2: Discard up to two cards, then draw that many cards.
−2: Sacrifice an artifact. If you do, return target artifact card from your graveyard to the battlefield.
−10: You get an emblem with "Whenever an artifact is put into your graveyard from the battlefield, return that card to the battlefield at the beginning of the next end step."
Daretti, Scrap Savant can be your commander.

When Rocco enters, if you cast it, you may search your library for a creature card with mana value X or less, put it onto the battlefield, then shuffle.

Destroy target artifact or enchantment. Its controller gains 4 life.

Whenever this creature enters or attacks, exile target card from a graveyard. Put a +1/+1 counter on this creature.
This creature has flying as long as a card exiled with it has flying. The same is true for first strike, double strike, deathtouch, haste, hexproof, indestructible, lifelink, menace, reach, trample, and vigilance.

Exile two target artifacts, creatures, and/or lands you control, then return those cards to the battlefield under your control.