This is a joke. The strategy of this deck is just to have fun ( ͡° ͜ʖ ͡°), as there is literally no strategy whatsoever. Stakataka GX is an Ultra Beast tech, and has absolutely NOTHING to do with Gumshoos.
Skeleton deck - add more cards of your liking (of course)
POKEMON:
Yungoos x4
Gumshoos x1
Gumshoos GX x3
Stakataka GX x4
Tapu Lele GX x2
Oranguru x1
TRAINER:
Cynthia x
Professor Sycamore x3
N x3
Ultra Ball x4
Field Blower x2
Brigette x1
ENERGY:
Metal x8
DCE x4
Skeleton deck - add more cards of your liking (of course)
POKEMON:
Yungoos x4
Gumshoos x1
Gumshoos GX x3
Stakataka GX x4
Tapu Lele GX x2
Oranguru x1
TRAINER:
Cynthia x
Professor Sycamore x3
N x3
Ultra Ball x4
Field Blower x2
Brigette x1
ENERGY:
Metal x8
DCE x4