Remembers me (off topic warning). I was playing through the Japanese game, found a shaking spot for the 1st time in the pinwheel forest. I was like: wtf is that? Shiny? Then I encountered a Lilligant. For some reason I didn't even try to catch it.
Probobly a good thing. As a Stone Evolution, Lilligant dosen't get many level up moves.
Lilligant misses out on Giga Drain and Sleep Powder, two core moves which make Petillil so good in-game.
You can train it in that elevator in castelia city with all those trainers, and you can go to the desert and knock the crap out of some sandiles. I swept Elesa's whole team with Leavanny (mine evolved to Leavanny before the gym) Return was dealing massive amounts of damage to here Emolga's, and there Aerial Ace was failing to even 3hko (yeah, mine was that damn bulky).
And, Cicada, I do not belive that a x4 effective, STAB Aerial Ace, could be 4HKO'ing a Levanny, unless you were something like Lv 40+. Especially since mine only just avoided a OHKO at Lv 30. And you won't be Lv 50+ with B/W's leveling mechanics.
Unfortunetly, as I do not know your Levanny's stats, and level, I cannot provide an accurate calc... however:
Lv 26 0/0 - 0IV Neutral Emolga's AA v Lv 30 Levanny [252/252 Bold]:
40 ~ 52 Damage
[Out of 113]
Certain 3HKO. And I highly doubt your Levanny was 252/252 Bold. And Elesa's Emonga are probobly not 0IV either. [IDK IV's for Gym Leaders]
Using something more realistic, a 20/20 Neutral spread, with a 15 IV in both HP and Defense:
60 ~72 Damage
[Out of 91]
Certain 2HKO
And even then, those EV's are generous for the period you would have had a Swadloon.
Please don't post Bull.