The actual Mythic affix is really nothing and needs to be changed to something meaningful. It’s a Mythic item ffs. It pops all your dot damage, which is something that the Spiritborn and Barb can already do (Druid used to be able to… but f them, AMIRITE!?) Anyways… this is absolutely weak sauce, and is the most pathetic excuse for a Mythic item, shouldn’t clog up the RNG with this garbage.
As a side note, and I don’t feel like getting into the explanation of why I’m about to say what I’m about to say (if you know you know… and the reasons are many.), but this absolutely should not be a two-handed slashing weapon if you’re going to make it about DoT damage, even with a change to it. In fact, I would say it’s only really ever going to feel like a Mythic item if you made it for the Pants slot. Anything else and it’s just not worth it for anyone. Not the Barb, not the Druid, and not even the Spiritborn.
Either make this item Pants, or change it to a Legendary Aspect, or just remove it from the game.