Quote Originally Posted by Daniel_Hatcher View Post
It doesn't even remotely imply that unless you've never obtained an Obi, and even then it doesn't.
Example:
Trial 2006: ■Defeat a set number of experience-yielding monsters under the prescribed weather conditions (earth), or on the corresponding day of the week.

Atma of the Earth Wyrm: Gain full benefit of Earthsday/earth weather bonuses

It kinda does imply that..