Pojo Gurus
 
I have a question yesterday I battle with my friend he attack my Promo Pikachu (Fighting weakness) with his Machop(Team Rocket)!
he attack me with punch (2 Colorless) ,than I told him that attack is colorless type but he won't listening then I ask the Gym Leader but he doesn't know anything about this situation!
because Of that I want to ask you "If a fighting pokemon attack a lightning pokemon(fighting pokemon weakness) with colorless attack the damage is doubled or not?"
 

The color of the attack is determined by the color of the Pokemon.  Machop is a fighting-type Pokemon.  Thus, all Machop's attacks will be fighting type, regardless of what kind of energy he uses to use it.  So, punch would do 40 damage to the fight-weak Pikachu.

Scott