Mythic raid items from early bosses can be upgraded to Item Level 447 on the Patch 10.1.5 PTR using the new 'Myth' upgrade track and Aspect Crests! In Patch 10.1, Mythic raid items, especially off the first few bosses, have very small value and it seems like Blizzard may be trying to address this. A new Myth track has been added seemingly for Mythic Raid items only which allows players to upgrade these items to 447 Item Level using Aspect's Shadowflame Crest. This should make early Mythic bosses much more valuable! This means that the following bosses will now drop items that can be upgraded to 447:
Kazzara: 441 Myth (1/3) Amalgamation: 441 Myth (1/3) Assault: 441 Myth (1/3) Forgotten Experiments: 444 Myth (2/3) Rashok: 444 Myth (2/3)Anything from Zskarn onwards already drops at 447 and is already Myth 3/3.
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