A stack of Empowered Psionics grants Smite 0% Peril cost.
This means you can be the bane of everyone’s frame rate and lighting forever
The good news, this improves the game not at all as players will just leave the psyker there to stun lock enemies forever alone and eventually die, either from boredom or just anything.
Really, the biggest problem is breaking framerates and inspiring QP groups to deep six the match, definitely more of an annoyance than a win button.