Of particular interest are weapons that can be used one-handed, hidden relatively well, and are light, but I'll take a look at everything that's suggested. Weapon proficiency is not a problem for me in this since I don't intend to use it for much else besides Coup de Grace.
Right now I'm looking for things with an x4 or higher crit on their own, or anything I can make Mercurial for an x4 or higher crit. Heck, if anyone finds a long, straight blade with d6 or higher dmg and an x4 crit that I can make mercurial for an x6 I'd love you forever.
While my GM has for the most part banned Dragon Magazine material, mention it as well if you know something good from it because I might be able to convince him for a single weapon.
3.0 and 3.5 material is allowed by the way.
PS/Bonus Points: A buddy of mine mentioned seeing a one-handed scythe somewhere, what are the stats on that? Is it an x4 crit? I can't seem to find it anywhere and he forgot where he saw it.
Best Answer
Enjoy the absurdly-named exotic weapon, the
Dragonsplit
Appearing the Monster Manual IV in the Greenspawn Sneak entry, the dragonsplit
A Medium wielder employing this 2-lb. otherwise-one-handed1 exotic weapon can choose, before making an attack, to inflict either 1d6 points of piercing damage with an 18-20 threat range or 1d6 points of slashing damage with a ×4 critical multiplier. It's for D&D 3.5 but, strangely, no price is given for purchasing one.
I always imagine the dragonsplit looking like an oversized balisong, although the official depiction is far different. (The greenspwan sneak on MM4 149 is wielding one; it's just a weird-shaped blade.) Picturing it as a big butterfly knife is the only way I can make the dumb name acceptable in my head.