Looking at the history given for
the Staff of Law, we know that Berek created it from a branch of the One Tree.
Minor question: How did he know how to find that? Or that it even existed?
when a second Staff is created,several 'ingredients' are used.
What purpose does each serve?
omit or overlook something? Was it something akin to Mhoram's epiphany about the Lords' use of Earthpower for fighting?
If these questions are answered later in the story than
Findail being found onboard Starfare's Gem in TOT
, please don't spoil the reveal.