I think the only flaw i would see here is the lack of a roll variant attack, yes there's the heal thing, but the attack being gone does make some places imposible to complete. Otherwise, itd be a really funni weapon lmao, its just
*DONK* *DONK* *DONK* *DONK* *DONK*
The healing is also nice if youre unable to find other ways 👽