Fellowship Phase Undertaking, Rivendell

[Elroval]

(Reposting this here, as it seems more appropriate to be in the House Rules section)

One of my players didn't want to take any of the available options for an Undertaking in Rivendell, so I came up with this (inspired partly by Feast in the Great Clearing):

Swim in the waters of the Bruinen

"The river of this valley is under his power...There is great vigour in the waters that come down from the snows of the Misty Mountains."

A Hero who spends time wandering the forests of Imladris, by the banks of the Bruinen, may refresh himself in the falls as they thunder into the hidden valley. If done regularly, the hero finds himself invigourated, and pervaded by a forceful vitality.

Gain the distinctive feature Energetic, for the duration of the following Adventuring phase.

[Corvo]

To me, it looks fine.