There's a short list of bases that are good for 24 dueling, but upping them makes them over 24. Realistically many of them are still worse than robos, Clever is a base that actually has damage (21.5) and wrist spike (20) for sins. All the others are a bit niche, Hatchet(15.5), poignard(12/-20 speed), rondel(18),cudgel(13.5), barbed club and flanged mace (19), rune scepter (18.5), gladius (15), shamshir (17). so shamshir is a bit above the pack of niche weps and has -10 speed at least, as well as only a 58/58 str/dex req. if you could get a decent eth rep one you'd have a cute wep. in a lower base up'd its autocharsi.