Flying
At the beginning of your end step, if this creature didn't attack this turn, put a +1/+1 counter on it.
"Hey everybody! I'm doing it!"
Illustrated by Tky · Avatar: The Last Airbender Eternal · #75
There are no rulings for Air Nomad Student.
At the beginning of your end step, if you haven't cast a spell from your hand this turn and this creature doesn't have a flying counter on it, put a flying counter on it.
At the beginning of each end step, put X +1/+1 counters on each creature you control, where X is the number of creatures that died under your control this turn.
At the beginning of each end step, put a +1/+1 counter on Asmira for each creature put into your graveyard from the battlefield this turn.
At the beginning of your end step, if this creature is equipped, transform it.
Peaceful Coexistence — At the beginning of your end step, put a +1/+1 counter on each creature you control that didn't attack or enter this turn. Untap those creatures.
At the beginning of combat on your turn, populate. (Create a token that's a copy of a creature token you control.)
Whenever a creature token you control enters, put a +1/+1 counter on this creature.