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

Flying
At the beginning of your upkeep, return an enchantment you control to its owner's hand.

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

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

(As this Saga enters and after your draw step, add a lore counter.)
, Mesmerize — Target creature can't be blocked this turn.
Cold Snap — Tap all lands your opponents control. Exile Shiva, then return it to the battlefield (front face up).

This creature can't be blocked.
Whenever this creature deals combat damage to a player, choose one that hasn't been chosen —
• Put two +1/+1 counters on this creature.
• Draw a card.
• This creature becomes a copy of another target creature you control.

Whenever you cast your first spell during each opponent's turn, you may tap or untap target nonland permanent.

Ward

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
Return each creature that isn't a Kraken, Leviathan, Merfolk, Octopus, or Serpent to its owner's hand.
, Until end of turn, whenever a Kraken, Leviathan, Merfolk, Octopus, or Serpent attacks, draw a card.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
, Heavenly Strike — Tap target creature an opponent controls. Put a stun counter on it.
Diamond Dust — Draw a card for each tapped creature your opponents control.

Flying

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after IV.)
Sonic Wings — Each opponent chooses a creature with the greatest mana value among creatures they control. Return those creatures to their owners' hands.
II, III, Tap up to one target creature and put a stun counter on it.

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.

Indestructible
As long as your devotion to blue is less than five, Thassa isn't a creature.
At the beginning of your upkeep, scry 1.
: Target creature you control can't be blocked this turn.

Constellation — Whenever this creature or another enchantment you control enters, target player mills two cards.

Bestow
Whenever this creature or enchanted creature deals combat damage to a player, draw a card.
Enchanted creature gets +3/+3.

The Mindskinner can't be blocked.
If a source you control would deal damage to an opponent, prevent that damage and each opponent mills that many cards.

Bestow
As long as this permanent is a creature, it has prowess.
Enchanted creature gets +1/+1 and has prowess.

Flying, trample
This creature gets +1/+1 for each card in your hand.

Whenever you cast your first spell during each opponent's turn, draw a card.

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

Flying
: Scry 1.

Constellation — Whenever this creature or another enchantment you control enters, exile target player's graveyard.

Each spell you cast that's a Demon, Horror, or Nightmare costs less to cast.
Whenever you cast a spell, if the amount of mana spent to cast it was less than its mana value, target opponent loses life equal to the difference.

Menace
Whenever this creature attacks, it gets +X/+0 until end of turn, where X is the number of creature cards in defending player's graveyard.

Flying
At the beginning of your end step, you may exile an enchantment card from your graveyard. If you do, create a 2/2 black Zombie creature token.

Flash
Whenever this creature attacks, surveil 1.

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

Arvinox isn't a creature unless you control three or more permanents you don't own.
At the beginning of your end step, exile the bottom card of each opponent's library face down. For as long as those cards remain exiled, you may look at them, you may cast permanent spells from among them, and you may spend mana as though it were mana of any color to cast those spells.

Bestow
Deathtouch
Enchanted creature gets +1/+1 and has deathtouch.

When this creature enters, target opponent reveals their hand and you choose a nonland card from it. Exile that card until this creature leaves the battlefield.