Unpopular Opinion: Buffing volibear won't fix his problems.
His kit is boring. That is why he isn't played much. You can dive as volibear into 5 people and walk away with 50% in the damage meta. Not saying hes op, not saying hes super weak. Im saying hes boring at his core. Im not saying add dashes and cool effects and make more monsterous champions, Im saying LEAVE HIM ALONE!!!