I don’t see a problem with banning a lot of Pokemon, as this format will include mostly OU and UU Pokemon. Primal Groudon, for example, would be way too powerful. I would ban Red Orb, Blue Orb, DM Necrozma, Xearneas, Yveltal, Power Construct, and maybe Ultranecrozium-Z.
Btw, how is the host decided? I wouldn’t feel too bad if I wasn’t chosen, as 3 others answered before me.