Witness of Tomorrows

Behold the Unspeakable // Vision of the Unspeakable

Enchantment — Saga // Enchantment Creature — Spirit (0/0)

(As this Saga enters and after your draw step, add a lore counter.)
I — Creatures you don't control get -2/-0 until your next turn.
II — If you have one or fewer cards in hand, draw four cards. Otherwise, scry 2, then draw two cards.
III — Exile this Saga, then return it to the battlefield transformed under your control.

Vision of the Unspeakable

Flying, trample
Vision of the Unspeakable gets +1/+1 for each card in your hand.

Archetype of Imagination

Enchantment Creature — Human Wizard (3/2)

Creatures you control have flying.
Creatures your opponents control lose flying and can't have or gain flying.

Inventive Iteration // Living Breakthrough

Enchantment — Saga // Enchantment Creature — Moonfolk (0/0)

(As this Saga enters and after your draw step, add a lore counter.)
I — Return up to one target creature or planeswalker to its owner's hand.
II — Return an artifact card from your graveyard to your hand. If you can't, draw a card.
III — Exile this Saga, then return it to the battlefield transformed under your control.

Living Breakthrough

Flying
Whenever you cast a spell, your opponents can't cast spells with the same mana value as that spell until your next turn.

Shimmerwing Chimera

Enchantment Creature — Chimera (3/2)

Flying
At the beginning of your upkeep, return up to one other target enchantment you control to its owner's hand.

Soul Seizer // Ghastly Haunting

Creature — Spirit // Enchantment — Aura (1/3)

Flying
When Soul Seizer deals combat damage to a player, you may transform it. If you do, attach it to target creature that player controls.

Ghastly Haunting

Enchant creature
You control enchanted creature.

Gutter Skulker // Gutter Shortcut

Creature — Spirit // Enchantment — Aura (3/3)

Gutter Skulker can't be blocked as long as it's attacking alone.
Disturb (You may cast this card from your graveyard transformed for its disturb cost.)

Gutter Shortcut

Enchant creature
Enchanted creature can't be blocked as long as it's attacking alone.
If Gutter Shortcut would be put into a graveyard from anywhere, exile it instead.

Jin-Gitaxias // The Great Synthesis

Legendary Creature — Phyrexian Praetor // Enchantment — Saga (5/5)

Ward
Whenever you cast a noncreature spell with mana value 3 or greater, draw a card.
: Exile Jin-Gitaxias, then return it to the battlefield transformed under its owner's control. Activate only as a sorcery and only if you have seven or more cards in hand.

The Great Synthesis

(As this Saga enters and after your draw step, add a lore counter.)
I — Draw cards equal to the number of cards in your hand. You have no maximum hand size for as long as you control The Great Synthesis.
II — Return all non-Phyrexian creatures to their owners' hands.
III — You may cast any number of spells from your hand without paying their mana costs. Exile The Great Synthesis, then return it to the battlefield (front face up).

Mirrorhall Mimic // Ghastly Mimicry

Creature — Spirit // Enchantment — Aura (0/0)

You may have Mirrorhall Mimic enter the battlefield as a copy of any creature on the battlefield, except it's a Spirit in addition to its other types.
Disturb (You may cast this card from your graveyard transformed for its disturb cost.)

Ghastly Mimicry

Enchant creature
At the beginning of your upkeep, create a token that's a copy of enchanted creature, except it's a Spirit in addition to its other types.
If Ghastly Mimicry would be put into a graveyard from anywhere, exile it instead.

Nyxborn Seaguard

Enchantment Creature — Merfolk Soldier (2/5)

Perplexing Chimera

Enchantment Creature — Chimera (3/3)

Whenever an opponent casts a spell, you may exchange control of Perplexing Chimera and that spell. If you do, you may choose new targets for the spell. (If the spell becomes a permanent, you control that permanent.)

Serpent of Yawning Depths

Enchantment Creature — Serpent (6/6)

Krakens, Leviathans, Octopuses, and Serpents you control can't be blocked except by Krakens, Leviathans, Octopuses, and Serpents.

Thassa's Devourer

Enchantment Creature — Elemental (2/6)

Constellation — Whenever Thassa's Devourer or another enchantment enters the battlefield under your control, target player mills two cards.

Thassa's Emissary

Enchantment Creature — Crab (3/3)

Bestow (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)
Whenever Thassa's Emissary or enchanted creature deals combat damage to a player, draw a card.
Enchanted creature gets +3/+3.

Thassa, Deep-Dwelling

Legendary Enchantment Creature — God (6/5)

Indestructible
As long as your devotion to blue is less than five, Thassa isn't a creature.
At the beginning of your end step, exile up to one other target creature you control, then return that card to the battlefield under your control.
: Tap another target creature.

Whitewater Naiads

Enchantment Creature — Nymph (4/4)

Constellation — Whenever Whitewater Naiads or another enchantment enters the battlefield under your control, target creature can't be blocked this turn.

Chromanticore

Enchantment Creature — Manticore (4/4)

Bestow (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)
Flying, first strike, vigilance, trample, lifelink
Enchanted creature gets +4/+4 and has flying, first strike, vigilance, trample, and lifelink.

The Kami War // O-Kagachi Made Manifest

Enchantment — Saga // Enchantment Creature — Dragon Spirit (0/0)

(As this Saga enters and after your draw step, add a lore counter.)
I — Exile target nonland permanent an opponent controls.
II — Return up to one other target nonland permanent to its owner's hand. Then each opponent discards a card.
III — Exile this Saga, then return it to the battlefield transformed under your control.

O-Kagachi Made Manifest

O-Kagachi Made Manifest is all colors.
Flying, trample
Whenever O-Kagachi Made Manifest attacks, defending player chooses a nonland card in your graveyard. Return that card to your hand. O-Kagachi Made Manifest gets +X/+0 until end of turn, where X is the mana value of that card.

Alrund, God of the Cosmos // Hakka, Whispering Raven

Legendary Creature — God // Legendary Creature — Bird (1/1)

Alrund gets +1/+1 for each card in your hand and each foretold card you own in exile.
At the beginning of your end step, choose a card type, then reveal the top two cards of your library. Put all cards of the chosen type revealed this way into your hand and the rest on the bottom of your library in any order.

Hakka, Whispering Raven

Flying
Whenever Hakka, Whispering Raven deals combat damage to a player, return it to its owner's hand, then scry 2.

Archive Dragon

Creature — Dragon Wizard (4/6)

Flying
Ward (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays .)
When Archive Dragon enters the battlefield, scry 2.

Cavalier of Gales

Creature — Elemental Knight (5/5)

Flying
When Cavalier of Gales enters the battlefield, draw three cards, then put two cards from your hand on top of your library in any order.
When Cavalier of Gales dies, shuffle it into its owner's library, then scry 2.