What is Stamina?
As long as you have Stamina, each Ranked match in Arena will consume 1 Stamina and grant you extra rewards per win with respect to your current Rank. Your stamina is recovered at 00:00 UTC everyday. Stamina is the equivalent of energy in Axie Classic (v2).
Total Stamina can be increased by collecting more Axies according to the following formula:
Stamina is capped at 60.
To learn more about battle rewards when consuming Stamina, you can check these other articles: