User blog comment:Lord Loss/Monster Hunter Theory... Blog/@comment-5020152-20120817141559/@comment-5020152-20120819213128

Lagiacrus, as someone in this blog stated before, I believe, hunts mainly in between the coasts and the deep sea, where it's too deep for White Lagia, and too shallow for Lagia Rare Species.

The "blockage" would be unneeded or excess electricity. Lagiacrus's brain monitors the lightning levels, and if there's too much, Lagiacrus will stop producing it. By releasing this excess of electricity, the levels will be kept to just enough of a minimum so that Lagiacrus's brain will subconsciously allow production to continue.