I agree with Byzantinist. I have LA but often find myself using one of the replacements (Chain Golem and Gelatinous Cube) because they fit the battle conditions better.
It's true that in some situations LA is OP, but that is kind of the point. If you want to be competitive in every battle condition, you have to have a well rounded deck.
I have an extra level 1 LA I can loan you for a season to test if you like. If you need him at a higher level, you can rent them on peakmonsters for extremely reasonable rates.