All AoE DoTs and lots of heals have had their tick frequency lowered, from once per second to every 2 seconds.
This is a staggering 50% reduction of all effects that proc off this damage.
For many sets and skills, this is a significan nerf. E.g., every set that procs on crit damage, like Briarheart. Or skills like Sorcerer's Surge. Even something like the Ring of the Pale Order is affected, because you can no longer count on getting healed every second as long as a DoT is running. Not to mention simple proc sets like Storm-Cursed's Revenge which proc on Shock Damage - with virtually all shock damage being from DoTs, this is an absolutely monumental nerf to an already mediocre set.
If this frequency nerf goes through, all, absolutely all proc effects in the game have to re-evaluated, and probably buffed. Unless you are prepared to do this, I beg you to reconsider.
Alandrol Sul: He's making another Numidium?!?
Vivec: Worse, buddy. They're buying it.