Get a void axe with 40 iron from the item shop. This axe grants heals(if you hit player) and pushes players when used, also has 6 second axe cooldown. The axe also lunges you forward. The axe has a huge reach that can hit people from above and below blocks.
You typically wanna use void regent with kits that apply heals. Since void regent gives health upon use. Kits like whisper provide a huge advantage since the whisper can choose when to heal you and whispers fly ability gives a huge advantage to staying alive. You can also use the axe to push people of off bridges, this is typically used as a last resort when the other openent overpowers you in gear and raw damage. People usuualy use this kit for its insane movement capabilities, void rgent can accumulate resources like diamond and emeralds really fast becuase of its shord axe cooldown and lunge.