Doryani's Porototype Carrion Golem build

so only doing lightning damage, was wondering what to do on my 6th link

currently 5 links are
golem - minion damage - mutli strike - melee phys - elemental damage with attacks

was thinking about these options..
deathmark, inspiration?, damage on full life, pulverize? is golem attacks all aoe? the less attack speed i dont like : /
dont want to use elemental focus since i can do big shocks

Pulverize is usually great for clearing large groups even with the attack speed reduction. My go to is usually ruthless support at all times though. It just hits so fucking hard with minions.