Normal: "A fiend that swoops down on its prey. It has low HP, so this is an easy win, right? Wrong. It's fast, so you'd better have good aim." Oversoul: "Sometimes uses Poison attacks. Its speed makes it a very annoying opponent that can easily dodge attacks if your accuracy isn't high enough." — Scan
Divebeak is an enemy in Final Fantasy X-2. It is an extremely weak enemy and should not pose a single problem, even when Oversouled. At any stage, one hit should be enough to take it down.
In the Fiend Tale endings, one notable Divebeak ran a delivery service for fiends who finds himself doing favors for humans, despite his initial feelings towards them. Eventually, Divebeak ends up delivering medicine for a sickly child in the Thunder Plains. However, after a brush in with Humbaba, Divebeak passes on to the Farplane out of relief of fulfilling his delivery. Only one feather remained of him and the child he saved kept it as a memento.