if im not mistaken there supposed to count as pale heart weapons so they should proc the dealers choice origin trait right? for example if i have axial lacuna, pro memoria and khovostov then khovostov cannot proc dealers choice. if the shotgun from root of nightmares works with the origin trait of the legendary weapons than so should the pale heart weapons work with the origin traits of the legendary weapons right? to make sure of that btw i killed a cabal with khovostov and axial luna but of course like i mentioned axial luna manages to get the buff but khovostov doesnt. i also checked other exotic weapons and the samething happened. i think it should but thats just my take.