In the approximately 90 minutes Elvena ran around the Aesry sea caves tonight, she received the following message each time (even the first) she tried to cast Branch Break:

You cry out to the powers of Nature to aid you against a nightreaver unyn.
Nature does not respond, likely since She still must recover from the loose rocks that recently tumbled down.

Strangely, these non-casts taught remarkably well.

--El's mind, reporting a bug