Return all creatures to their owners' hands. Each player may shuffle their hand and graveyard into their library, then each player who does draws seven cards.
Exile Turtles in Time.

Changeling
: Switch this creature's power and toughness until end of turn.

Flash
When Tuvok enters during the declare attackers step, choose up to two target attacking creatures. For each of them, you may reselect which player or permanent that creature is attacking. (A creature can't attack its controller.)

Whenever you cast a noncreature spell, this creature gets +1/+0 until end of turn and can't be blocked this turn.

Your maximum hand size is twenty.
Whenever you attack with two or more creatures, put a +1/+1 counter on this creature and draw a card.
Whenever this creature attacks, you win the game if there are twenty or more counters on it or you have twenty or more cards in hand.

Cast this spell only if you control two or more Doctors.
Take an extra turn after this one. Exile Twice Upon a Time.

You may tap or untap target artifact, creature, or land.

Copy target instant or sorcery spell. You may choose new targets for the copy.

Flying, vigilance, ward

Choose one —
• Counter target spell.
• Manifest dread.

Switch target creature's power and toughness until end of turn.
Draw a card.

Choose one —
• Target creature gets -6/-0 until end of turn.
• Switch target creature's power and toughness until end of turn.
Entwine

You may tap or untap target artifact, creature, or land.
Draw a card.

Choose one or both —
• Put a base power 4 counter on target creature.
• Put a base toughness 4 counter on target creature.

Flash
Prowess
When Ty Lee enters, tap up to one target creature. It doesn't untap during its controller's untap step for as long as you control Ty Lee.

Sleight of Hand — : Draw two cards.

Devoid
Return target nonland permanent you don't control to its owner's hand.
Whenever you cast a colorless spell with mana value 7 or greater, you may exile this card from your graveyard. When you do, return each nonland permanent you don't control to its owner's hand.

Scry X, where X is the greatest mana value among permanents you control, then draw three cards.

Whenever a non-Human creature enters, you may pay . If you do, draw a card.

Devoid
When this creature enters, you may put a card an opponent owns from exile into that player's graveyard. If you do, return target instant or sorcery card from your graveyard to your hand.

When Ultimecia enters, tap all creatures your opponents control.
Whenever a creature you control deals combat damage to a player, draw a card.

Whenever you cast a noncreature spell, if at least four mana was spent to cast it, tap target creature an opponent controls and put a stun counter on it.
Whenever you cast a noncreature spell, if at least eight mana was spent to cast it, put eight +1/+1 counters on Ultros.

Flying
Whenever this creature or another Ally you control enters, you may put a +1/+1 counter on this creature.

Whenever you cast an instant, sorcery, or Wizard spell, this creature gains flying until end of turn.

Enchant creature
Enchanted creature loses all abilities and is a Toy artifact creature with base power and toughness 0/2 in addition to its other types.
As long as enchanted creature is face down, it can't be turned face up.

Target creature gets -4/-0 until end of turn. If you control a Fish, Octopus, Otter, Seal, Serpent, or Whale, draw a card.

Return target nonland permanent to its owner's hand. Surveil 1.