none you have to teach it to a fighting type
Veilstone Gym.
lost tower :D
HM 4
Veilstone.
Go to the lost tower
one of you Pokemon in your party need to learn strength.
Beat Byron then get strength and then you can use it.
Yes it can learn strength
in the cave with big boulder
The HM strength
Tower on route 209.
Strength isn't found in a cave in Pokemon Pearl. Instead, Riley, a trainer located in Iron Island, gives it to you.