A cat o'nine flails, a new weapon of my devising, is a 9 headed flail similar to an Ochsenherde. Note that this is not to be confused with a cat o'nine tails.
Artist's impression – Original image source
What is the best way to stat a weapon such as this in D&D 3.5e? My initial suggestions is as a two-handed Exotic Weapon with 1d12 damage and a 20×2 critical.
Are these stats viable/reasonable when compared with other weapons in D&D 3.5? If not, how do I make this weapon viable/reasonable?
If no other opinion then how would you make it balanced?