>>48031748buff it offensively, but that's it.
giving shedinja actual bulk is not a good idea, i'm sorry
make it a mixed attacker, give it WAY WAY better moves, and if you really want to, make wonder guard ignore sand and hail. (not hazards or status damage imo)
with movepool buffs it'll be plenty good
also, it's way too fast. it shouldn't pass 70 base speed, it doesn't make any sense for it's design or lore. 1/90/1/90-115/1/65, a lot of good movepool buffs and you're good to go.