Set is here: https://www.grimtools.com/db/itemsets/156
Not clear what the demo support is doing on here. Stun jacks are phys/lightning and no weapon damage, so pierce conversion won’t do anything exciting. Any other pierce conversion on demo skills is going to leverage MIs iirc.
Changing this to Inquisitor support, however, would open up some additional (ranged) savagery vindicator options outside of ludrigan or ultos. I don’t think lightning infiltrator is going to tear up the world with single RR and poor mastery support.
Example GT build with no resist augments yet, won’t make in game to test until tomorrow, but as viewed skill points on the Inquis side are stretched:
https://www.grimtools.com/calc/wV1v5RwZ
Similar theme from @thejabrixone back in 1.1.4.2 that I’m not sure if actually got tested
https://www.grimtools.com/calc/4ZD1ObWN
Not expecting these to burn the world down, but obviously if I’m surprised thread will be updated. Something like ranged expertise, chilling rounds, and storm spread getting + points instead would free up the build a bit and keep on the pierce conversion theme to lightning + cold damage support. Aura of Conviction would work too but no one is going to take it on an elemental build with Censure RR sitting right there.