I don't mean to be crass, but I'm going to quote Faint's comment on your original posting of this set:
Let's be honest, that set looks incredibly useless. Lugia has it hard enough dealing with Forretress and Ferrothorn setting up on him, so let's not make it any worse. Thunder Wave is a good move in general, so I see the appeal in it, but all you're going to be doing with that set is annoying people. It's never going to win games, unless you have spikes / sr / tspikes on your opponents field with their spinner dead. And that's incredibly unlikely. Excadrill also has fun with you too.
Why would one use this set? Why would you run Thunder Wave over, say, Toxic? If you don't have hazards up (which is decently probable, considering the fact that you're spinning bait) you quite literally cannot do damage to your opponent
. Not running a move that's capable of at least chip damage voids one of the main reasons that drives people to use Lugia: the ability to wear your opponent down. If this gets approved for input to the site, you'll need to take a careful look at what makes this your "favorite set in Ubers" and see whether it can't be made better by another set.
"May the odds be ever in your favor"
"WTF HAX NOOB"
The hills are alive with the sound of PS ladderers.
Come over and help out with the Ubers CCAT