Jeskai Windscout

Flying
Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)

Annul

Counter target artifact or enchantment spell.

Hydroblast

Choose one —
• Counter target spell if it's red.
• Destroy target permanent if it's red.

Unsummon

Return target creature to its owner's hand.

Negate

Counterspell

Echoing Truth

Return target nonland permanent and all other permanents with the same name as that permanent to their owners' hands.

Stormbound Geist

Flying
This creature can block only creatures with flying.
Undying (When this creature dies, if it had no +1/+1 counters on it, return it to the battlefield under its owner's control with a +1/+1 counter on it.)

Illvoi Galeblade

Flash
Flying
{2}, Sacrifice this creature: Draw a card.

Spell Pierce

Counter target noncreature spell unless its controller pays {2}.

Warden of Evos Isle

Flying
Creature spells with flying you cast cost {1} less to cast.

Snap

Return target creature to its owner's hand. Untap up to two lands.

Curfew

Each player returns a creature they control to its owner's hand.

Gut Shot

({R/P} can be paid with either {R} or 2 life.)
Gut Shot deals 1 damage to any target.

Brainstorm

Draw three cards, then put two cards from your hand on top of your library in any order.

Preordain

Scry 2, then draw a card. (To scry 2, look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)

Island

Spire Golem

Affinity for Islands (This spell costs {1} less to cast for each Island you control.)
Flying