Boss group — Lake Guardians — Recordkeepers
Every wild Pokémon here, by encounter method.
Boss group — Lake Guardians lists 3 Pokémon across 1 encounter method (boss (choose one of the group)), between level 90 and 99.
3 trainers here:
Boss (choose one of the group) Lv 90–99, scales
About these levels
Your three Pokémon are level 100 and nothing ever levels up. Bosses and minibosses are level 90 at the start of a run and one level higher for every boss you have beaten in that run, so a fight page shows 90 — the run-start level — and the final bosses show 100, which they always are.