Draw three cards. If you control no artifacts, discard a card.

Flash
Ward — Waterbend .
Whenever an opponent draws their second card each turn, you draw two cards.

The Watcher in the Water enters tapped with nine stun counters on it.
Whenever you draw a card during an opponent's turn, create a 1/1 blue Tentacle creature token.
Whenever a Tentacle you control dies, untap up to one target Kraken and put a stun counter on up to one target nonland permanent.

Flash
Flying
Spells you cast with mana value 5 or greater cost less to cast and can't be countered.

Defender
: This creature loses defender until end of turn.
: Untap target permanent.

Draw four cards.

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

Target player takes an extra turn after this one.

When this enchantment enters, put a rejection counter on each creature your opponents control.
At the beginning of your end step, for each opponent, choose up to one target creature they control with a rejection counter on it. That creature's owner puts it on their choice of the top or bottom of their library.

Counter target spell.
Basic landcycling

Target player mills half their library, rounded down.

Enchant creature
When this Aura enters, untap up to five lands.
You control enchanted creature.

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

Convoke
Draw three cards, then discard a card.

You may have this creature enter as a copy of any creature on the battlefield, except it doesn't copy that creature's color and it has "At the beginning of your upkeep, you may have this creature become a copy of target creature, except it doesn't copy that creature's color and it has this ability."

As this creature enters or is turned face up, you may choose another creature on the battlefield. If you do, until this creature is turned face down, it becomes a copy of that creature, except it has "At the beginning of your upkeep, you may turn this creature face down."
Morph

Draw three cards. Proliferate.

Flash
When this creature enters, counter target artifact or creature spell.

Flying
When Wan Shi Tong enters, target nonland permanent's owner puts it into their library second from the top or on the bottom.
Whenever one or more cards are put into a library from anywhere, create two 1/1 colorless Spirit creature tokens with "This token can't block or be blocked by non-Spirit creatures."

Flying
When this creature enters, surveil 2.

Kicker
Flying
When this creature enters, if it was kicked, return all other creatures to their owners' hands and you skip your next turn.

Kinship — At the beginning of your upkeep, you may look at the top card of your library. If it shares a creature type with this creature, you may reveal it. If you do, each creature you control gains flying until end of turn.

Draw three cards. Target player mills three cards.

If an opponent had two or more creatures enter the battlefield under their control this turn, you may pay rather than pay this spell's mana cost.
Return two target creatures to their owners' hands.

Flying
Morph

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

Whenever a creature an opponent controls becomes the target of a spell or ability you control, gain control of that creature for as long as you control this creature.