Does press the attack stack?
Like if the support and the adc both take it, how does that interaction work?
Like if the support and the adc both take it, how does that interaction work?
I would say test it.
I want to say that No, it doesn't but all you can do is try and see. I would recommend doing so in a custom game, so as not to get flamed by those in Norms or Ranked that will doubtlessly find fault with both a ADC and Supp taking Press the Attack as their main Rune.