Really, guys, is "gains immunity" all that hard to tell from "grants immunity"?
Name: Rusty (Rustyx in game)
Guild title: resident wisenheimer.
lol cmon everyone, it really is easy to test these things....just did Insane 3-6 (lots of stun towers) with PD 11/11 and Nub. Nub received PD's ATK buff but still got stunned, you can see PD buff and stun graphic in the pic here.
Only PD gains stun immunity for 3 seconds after proc, other heroes do not gain stun immunity for any amount of time.