I'm not too sure about adding another set, since it would virtually be the same thing, but with slightly different moves. I think a mention of Aromatherapy in the AC is fine, and keeping Sludge Bomb as the second move is fine. I would just slash Toxic Spikes with Spikes, since the coverage Sludge Bomb provides is so important it can't afford to be dropped. Of course, this is just my opinion, as it is ultimately up to QC to decide what goes in the analysis.