Hello there!

[Dragonstrike]

If you want to try using Feliger, the most 'reliable' way without relying on an item is teaching it Sleep Talk (I think the bug with Lazy and Sleep Talk was fixed awhile back. If not, the alternative is Snore, but it isn't a particularly strong move).  The catch is you don't know how long it will be sleeping for whenever Lazy activates, so the only time you're guaranteed to get it off is the first turn of sleep.  The TM for Sleep Talk is found in Vinoville, so you'd definitely have it if you've done a lot of exploring around there.

Lots of other options that could fit the bill, but many of the 'best' ones take a ton of extra grinding to make them usable and/or are found towards the end of the game.

Oh, and welcome to the forums! Have a cookie! *hands over an Oreo*