Which moveset for a timid one?
Crobat (Leftover or Black Sludge item)
Timid Nature
SPATK/SPD ev's
Air Slash or Sludge Bomb
U-Turn
Defog or Taunt
Roost
well tbf all these moves are too good to drop them, Uturn is such a good move with his high speed and def/roost are like well it is a supportive pokemon
oh and about the ability "Infiltrator" is good against screen users but inner focus is good as well vs all these medicham's/ambipom's
it can learn nasty plot giga drain and heat wave too :) overall great coverage in the end u need to look what ur team needs