Horwath
Legend
to be real, 10lb is too much for a melee weapon, even 2Handed, you would be so slow that anyone that has training would stab you 10 times with a dagger before you would make a full swing with it.Same reason DMs keep being weird about letting martials do even real-world achievable athletic tasks.
'uhh, a greatclub only weighs 10 pounds, it just seems weird to compare that to a giant's severed leg, man, I better stay on the safe side rather than let you get 2 extra average dmg'
You don't want to need DM permission for a core part of your (sub)class.