The Tungkod ng Pagkalimot is an important treasure of the Diwatas. Its purpose is to erase memories.
When Cassiopea gave a warning to Mine-a, the latter advised Raquim to take their daughter and raise her in the Mortal Realm. Imaw entrusted this to Raquim if incase the mortals learn about Amihan's true identity. It's origin has not yet been confirmed.
(More to be added...)