I'm trying to make a good doubles team but I have no idea what to partner with my mega Ampharos, could someone suggest anything.

Heres it's moveset if it helps

Ampharos (M) @ Ampharosite
Ability: Static
EVs: 252 HP / 252 SpA / 4 SpD
Modest Nature
IVs: 0 Atk
- Discharge
- Volt Switch
- Dragon Pulse
- Focus Blast