2JFTt2gyNz2ukYyySJVVoYE12D7LcExEtvkdUHC2RiA4
Official X Coin isn't on the curated arena yet, but anyone can pick it as one of their five each round.
https://apeleague.xyz/t/2JFTt2gyNz2ukYyySJVVoYE12D7LcExEtvkdUHC2RiA4