I did try Zubat for a while. Zubat doesn't really destroy Burgh though (because Dwebble is the biggest piece of fuck to exist) and he's not exactly very useful against Elesa for obvious reasons. Zubat's just... not useful. He's not bad, but he's not good either.
@nwokohk: You mentioned Facade Raticate. You mentioned Toxic Orb. IIRC that thing not available in game and requires 16 BP to purchase. Honestly, no. Unless you are willing to spend 2 hours grinding in PWT/Battle Subway for that. >.>
also lol lv58 raticate dealing 80% to haxorus, that thing's only lv59 taking a 140 stab BP attack what are you smoking