My current team is mega rayquaza delta draginight primal regigigas darkrai primal groudon, so what do you think would be better
Primal Arceus is busted as hell, but you already have a dragon, so meh. I would say get arceus and replace rayquaza.
arceus primal is a beast : safeguard, sword dance, extreme speed, return or eartquake or shadow claw adamant or jolly.
Im pretty suprised the fourm is so active, thanks for the feedback