Vivid Flying Fish

Vivid Flying Fish has flying as long as it's attacking. (It can't be blocked except by creatures with flying or reach.)

Ancestor Dragon

Flying
Whenever one or more creatures you control attack, you gain 1 life for each attacking creature.

Island

Brilliant Plan

Dragon's Presence

Dragon's Presence deals 5 damage to target attacking or blocking creature.

Stormcloud Spirit

Flying (This creature can't be blocked except by creatures with flying or reach.)

Armored Whirl Turtle

Cloak of Mists

Enchant creature
Enchanted creature can't be blocked.

Heavenly Qilin

Flying (This creature can't be blocked except by creatures with flying or reach.)
Whenever Heavenly Qilin attacks, another target creature you control gains flying until end of turn.

Purple-Crystal Crab

When Purple-Crystal Crab dies, draw a card.

Nine-Tail White Fox

Whenever Nine-Tail White Fox deals combat damage to a player, draw a card.

Colorful Feiyi Sparrow

Mu Yanling

+2: Target creature can't be blocked this turn.
−3: Draw two cards.
−10: Tap all creatures your opponents control. You take an extra turn after this one.

Rhythmic Water Vortex

Return up to two target creatures to their owner's hand.
Search your library and/or graveyard for a card named Mu Yanling, reveal it, and put it into your hand. If you searched your library this way, shuffle.

Earth-Origin Yak

When Earth-Origin Yak enters, creatures you control get +1/+1 until end of turn.

Plains

Qilin's Blessing

Target creature gets +2/+2 until end of turn.

Moon-Eating Dog

As long as you control a Yanling planeswalker, Moon-Eating Dog has flying. (It can't be blocked except by creatures with flying or reach.)

Meandering River

Meandering River enters tapped.
{T}: Add {W} or {U}.

Drown in Shapelessness

Return target creature to its owner's hand.

Welkin Tern

Flying (This creature can't be blocked except by creatures with flying or reach.)
Welkin Tern can block only creatures with flying.