Auto attacks inflict stacking Shadow damage over 1 sec sec.
Zul'jan defiles The Coiled Altar, applying a barrier that absorbs the next X healing to all players and gaining 3 applications of Corrupted Toxin every 1 sec sec for 8 sec.
The mouths of The Coiled Altar overflow, spewing Defiled Ground beneath them that quickly swell and slowly subside over time.