90level cap
Beating them gives you the ability Dishearten.
Fought at Area 1 — Pseudo-legendary guardians.
Types on this team: Dark ×3Dragon ×3
| Pokémon | Moves | |
|---|---|---|
 | Hydreigon Lv 90 · Dark Aura Phase 1 of 3 — uses these moves in this order, then repeats. Level 90 at the start of a run, one higher for every boss you have already beaten this run (99 after nine). Innates switch on as your boss count grows: Levitate (Not hit by Ground attacks.) — from your 2nd boss win; Pressure (Raises foe's PP usage.) — from your 4th; Dragon's Maw (Ups Dragon-type moves.) — from your 6th. Beating it grants the ability Dishearten (Lowers the foe's Sp.Attack.). | Nasty Plot Dark Pulse Dragon Pulse |
| Hydreigon Lv 90 · Dark Aura Phase 2 of 3 — uses these moves in this order, then repeats. Its HP is fully restored when this phase begins. | Flamethrower Earth Power Dark Pulse Surf |
| Hydreigon Lv 90 · Dark Aura Phase 3 of 3 — uses these moves in this order, then repeats. Its HP is fully restored when this phase begins. | Dark Pulse Draco Meteor |