New way to farm Limit Burst

So I was farming Limit Burst at Snowy Woods - Exploration and found out that Flickering Presence gives UNLIMITED LB crystal! It does deal very heavy ice damage so make sure that you have 100% ice resist before coming in. In addition, it also heals itself from time to time when St. Elmo is alive (or maybe the healing comes from St. Elmo), or you can heal it yourself.
Bring Shock Whip and Venomous Edge if you have them. The boss is no joke. I only recommend using 6* units.

Edit: it seems to stop after ~ 3 hours. So it is not unlimited but significantly high comparing to other monsters.