If I got a charizard with:
maxed out sp attack+blaze on+sunnyday on+stab for flamethrower
what will be the total damage of flamethrower ?
Damage is calculated by (S)Att AND (S)Def. But base power would be:
951.51.5*1.5 = 320.625
Well, that would have to depend on the pokemon you are fighting, and your Charizard's EV's.
But, Blaze will increase the attack by 1.5×
Sunny Day will increase the attack by 50%
and a STAB Flamethrower will be 142 attack.