well, as you said, people knows to abouse its intimidate using volt switch on and on. its able to outspeed many Pokemons in mega form using its whopping 135 base speed. manetictric is kinda anti-meta checking many very popular Pokemons ,noticeable:
Scizor, Ferrothorn, Skarmory, Talonflame, Aegislash, and mega lucario. all of these are currently very big threats you will need a counter for, and mantric fixes that job easily with this set:
Manectric @ Manectrite
Ability: Lightningrod -> Intimidate
Evs: 252 speed / 252 Satk / 4 hp
Nature: Timid
- Volt Switch
- Hidden power [Ice]
- flamethrower
- Thundebolt/thunder
this set is especially good in rain teams. first you send out drizzletoad, attracting thunderbolts fast as hell. then you switch to manetictric to get lightingrood boost, mega evolves and sweep. land is also a good partner for manectitric. abuse intimidate VoltTurn to cripple most physical sweepers baring mamoswine
hope I helped :D