Svarog’s Anvil Strike

As an action, you slam your weapon or smith’s hammer into the ground, unleashing a wave of celestial fire in a 30-ft radius. Creatures in the area take 10d10 radiant or fire damage and must make a Constitution saving throw (DC = 8 + Prof + Int) or be  disarmed, their weapons momentarily heating up in divine heat. This can be used once per long rest.