the few issues i have with reaper are:

resource negative (let arcane crest give 10 meter if the shield is broken) (have harpe give 10 meter) (have harvest moon give 20 meter) (have shadow of death give X amt of meter when it expires) any, all, some but not all of these would be great

harvest moon feels disjointed from the rest of your kit (i would accept a nerfed HM if it worked like shoha or something where after X amt of communio casts or plentiful harvest casts or both it procs harvest moon)

thats about all i can think of that i think would improve the job as i think no other melee suffers from disconnects or downtime as much as reaper does