I like the idea of DF swords. Swords have high durability and can be covered in CoA and CoC.
A guy like Shamrock gets all the benefits of the fruit, while staying safe from damage himself.
It creates variety in abilities while it does not drawback or downgrade, what's otherwise a solid high top tier most likely.
Similar to Orochi's fruit a Cerberus fruit has far too many weak spots to be considered great, when used by a character himself. It's pretty weak even, but on a weapon exceptionally good.
