I wasn’t really playing at that time and it was also only explained to me by Chthon and Fluff so this would be inaccurate.
So the build was pierce deathmark SS BM with beronath’s fury autoattack. When you look at current pierce devotions, it seems underwhelming, it’s because it was nerfed to the ground. You didn’t even care if beronath’s fury had phys>ele conversion (aka dps loss) cause you still hit like a truck. Also, belgo relic (and markovian set) proc was stronger back then. I think it had lower proc cd and better cdr, can’t remember, but it was basically like having TD chaining your SS, but without TD. They also nerfed deathmarked set itself and now kinda transformed it to cold focus. Devs hated pierce so much that at the first sign of BM coming back, they nerf it again. I remember reading old builds (I think from JoV), first older build states “despite he nerfs, BM still playable” then 2nd build is like “I’ll make BM work no matter what”. Pierce BM never came back until AoM and Belgo set.
Again that is inaccurate. Some older players should the story better