Evergaze Arcane Eidolon

Evergaze Arcane Eidolon
Mythic
Item Level 685
Binds when picked up
Unique-Equipped
Trinket
+301 Mastery (2.74 at L100)
Requires Level 100
Sell Price: 38 41 48
Dropped by Imperator Mar'gok - Highmaul.
Bonuses:

Winnable by the following class specs:
Paladin:
Warrior:
Druid:
Death Knight:
Monk:
Demon Hunter: