How is Palpatine getting so many “Power of the Darkside” shocks?

On a side note, their Palp’s shock usually stuns 3 to 5 of my toons. (And two of my toons are geared for Tenacity) Where mine will hit two at most. My Palp has 95% potency; theirs usually sit around the 60’s. Not complaining...I guess tenacity and potency aren’t everything. Trying to figur this one out as well so I can make some changes.