Sounds like the SwSh Pokémon Gym leader theme

LR AGL Krillin and Gohan (Kid) Active Skill Theme | DBZ Dokkan Battle

STR Kid Buu OST (Extended) - Dragon Ball Z Dokkan Battle

VERY GOOD OST!!!
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HD Art from Kyros: www.twitter.com/ChannelVmn
OST from XenoKensei (trimmed): www.youtube.com/@XenoKensei

...just Epic and Beautiful... 
my most Favorite Champion
Lady Cynthia!! *w*

Reupload makes it louder, makes it loop properly and removes the windows 10 popup noise