Hey, Welcome to the Cloud Devil's Sand Gym.
Please do not use any legends. Any pokemon such as Mew, Arceus Darkria is not permitted. If you Come to the battle With those pokemon it will count as an automatic win for me due to the lack of skill you presented to me. As a tip, i use more than sand pokemon. Please bring a variety of pokemon. I only accpet level 100 pokemon in battle. So do what you please but don't bring any cheap or abused pokemon. It will also count as a lose.
Also After Reading this check the rules of battle. And the List of Baned Pokemon