Priest and scout arms shoulders I've seen off Talapook'tei.( did you mean shoulders or forearms earlier?)
Earring off of the rare drop of the viney giant on the balconey.
Does the tree only have a fable drop(priest/scout shields)? His loot might be messed up.
On a side note, the contested bosses have rare drops too, firebrand definitely can drop a fabled ear, besides the usual legendary neck.