Divine Sacrifice

When a warlock or paladin holds an amulet representing their god/patron, raises the amulet high into the air, and crushes said amulet, the energy stored up inside both the caster and the amulet will begin to burst out. This energy will first engulf the caster's body, forming a sort of shield around their body. Next the energy will begin to engulf the ground, making it impossible to move for the target of the spell. After the ground is engulfed, all the energy will be sucked back into the caster, and eventually, all the energy built up will explode, destroying anything within 300 feet of the caster in every direction. If the spell hits any characters/creatures with evil in their souls, it will instantly reduce all of that character's/creature's HP to 0, no matter what. But of course, this spell comes with a cost. When this spell is cast it won't just destroy the evil characters/creatures, it will also destroy the caster. This is a last resort technique for after the spell is cast it cannot be stopped, when the caster dies, it is impossible to bring them back. No revivify, no resurrection scrolls, and no death saving throws. the character/creature this is used can not be brought back either.