Flying
Sphinx spells you cast cost less to cast.
Whenever Unesh or another Sphinx you control enters, reveal the top four cards of your library. An opponent separates those cards into two piles. Put one pile into your hand and the other into your graveyard.

This creature can't be blocked.

Skulk
When this creature deals combat damage to a player, transform it.

Whenever another creature enters, this creature becomes a copy of that creature, except it has this ability.

Flying
Whenever you cast a spell during an opponent's turn, surveil 2.

Vigilance
Eerie — Whenever an enchantment you control enters and whenever you fully unlock a Room, put a possession counter on this creature.
When this creature dies, create an X/X blue Spirit creature token with flying, where X is the number of counters on this creature.

When Urza enters, create a 0/0 colorless Construct artifact creature token with "This token gets +1/+1 for each artifact you control."
Tap an untapped artifact you control: Add .
: Shuffle your library, then exile the top card. Until end of turn, you may play that card without paying its mana cost.

Vigilance
, : Draw a card, then discard a card.
Whenever you discard one or more artifact cards, create a tapped Powerstone token. This ability triggers only once each turn.

The second spell you cast each turn costs less to cast.

: You may exile an instant or sorcery card from your hand and put three hone counters on it. It gains "At the beginning of your upkeep, if this card is exiled, remove a hone counter from it" and "When the last hone counter is removed from this card, if it's exiled, you may cast it. It costs less to cast this way."

Flying
, Return two lands you control to their owner's hand: Copy target instant or sorcery spell. You may choose new targets for the copy.

Noncreature spells you cast cost less to cast.
Whenever you cast your first noncreature spell each turn, draw a card.

Flash
You may cast noncreature spells as though they had flash.
Whenever you cast a noncreature spell, Birds, Frogs, Otters, and Rats you control get +1/+1 until end of turn. Untap them.

Squad
Flying
Suppressing Fire — Whenever this creature deals combat damage to a player, draw a card.

Flying
Adamant — If at least three blue mana was spent to cast this spell, this creature enters with a +1/+1 counter on it.

Flying
This creature can block only creatures with flying.

Flying
At the beginning of your upkeep, this creature phases out unless you pay .

Flying, prowess
This creature enters prepared.

Flash
When this creature enters, return target Sliver to its owner's hand.
Wizardcycling

, : Put a -1/-1 counter on target creature. You may tap or untap that creature.

Whenever you cast an artifact spell, draw a card.

Metalcraft — : Tap target artifact, creature, or land. Activate only if you control three or more artifacts.

When this creature enters, put target creature on top of its owner's library.

: Add two mana of any one color. Spend this mana only to cast artifact spells or activate abilities of artifacts.

, : Target player mills two cards.

Metalcraft — Whenever this creature attacks, if you control three or more artifacts, creatures your opponents control lose all abilities and have base power and toughness 1/1 until end of turn.

This creature can't be blocked.
Metalcraft — This creature gets +1/+0 as long as you control three or more artifacts.