Inspiration from Beyond

Mill three cards, then return an instant or sorcery card from your graveyard to your hand.
Flashback {5}{U}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Clammy Prowler

Whenever this creature attacks, another target attacking creature can't be blocked this turn.

Sleep Magic

Enchant creature
When this Aura enters, tap enchanted creature.
Enchanted creature doesn't untap during its controller's untap step.
When enchanted creature is dealt damage, sacrifice this Aura.

Spectral Interference

Counter target artifact or creature spell unless its controller pays {4}.

Aetherize

Return all attacking creatures to their owner's hand.

Bounce Off

Return target creature or Vehicle to its owner's hand.

Island

Wingblade Disciple

Flying
Flurry — Whenever you cast your second spell each turn, create a 1/1 white Bird creature token with flying.

Fleeting Distraction

Target creature gets -1/-0 until end of turn.
Draw a card.

Aegis Turtle

Archmage of Runes

Instant and sorcery spells you cast cost {1} less to cast.
Whenever you cast an instant or sorcery spell, draw a card.

Dreams of Laguna

Surveil 1, then draw a card. (To surveil 1, look at the top card of your library. You may put it into your graveyard.)
Flashback {3}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Highspire Bell-Ringer

Flying
The second spell you cast each turn costs {1} less to cast.

Piranha Fly

Mocking Sprite

Flying
Instant and sorcery spells you cast cost {1} less to cast.

Wingspan Stride

Enchant creature
Enchanted creature gets +1/+1 and has flying.
{2}{U}: Return this Aura to its owner's hand.

Imprisoned in the Moon

Enchant creature, land, or planeswalker
Enchanted permanent is a colorless land with "{T}: Add {C}" and loses all other card types and abilities.