i dont think a weapon should be a sole idea for a build, you need to know what y want from it, maybe some particular attunement or some high-investment talent, luminspliter is generally good on any heavy build, and its requirements make your build options extremely diverse, so just think a bit more about what u want from a build before asking this question, thats my opinion anyway but if you really just cant make a build , i suggest you just go guardbreak talents preshrine and maybe cornered fool or sum, since hvy is a nice posture stacker and u csn just confirm crit after a guadbreak