Spear of Radiance

weapon (spear), very rare, requires attunement     Attacks made with this weapon gain a +1 bonus to attack and damage rolls.   When you attack with this weapon you deal an additional 1d8 radiant damage.     The spear has 3 charges that it regains daily at dawn. As an action you can expend 1 charge to cause an explosion of light in a 30-foot radius centered on you. Each hostile creature caught in the light must succeed on a DC 15 Strength saving throw or take 2d10 radiant damage and 2d10 bludgeoning damage. Regardless of the outcome of the save, each creature (this includes allies) other than you that is in the radius is pushed back to the edge of the explosion.