So I am starting to play 
and in one of my games I am up against a 
. And I know that Q just powers up his auto attack. I have noticed that Jax's E doesn't block any of the damage from Nasus' Auto Attack + Q. Technically it is an auto attack so it should block the damage. Right? thanks for reading. Have a good day :D
I think for some champions it will block the aa damage but not the actual effect. Nasus is a example, and blitzcrank as with jax e you ignore blitzcrank's e aa damage but not his knockup
Actually they supposedly changed it last patch or the one before to block any aa damage including additionnal dmg from aa empowering abilities (Jax w or Sona passive for exemple, so should block Nasus q also in theory)
