Your outstretched hand glows with sinister power that hastens the demise of a creature you touch. Make a melee spell attack against the creature. On a hit, the target takes 1d4 necrotic damage and must make a successful Constitution saving throw or become poisoned until the end of your next turn. If the target was already poisoned when you hit it with hand of doom, it takes 1d12 poison damage instead of 1d4 necrotic damage on a failed save.    This spell’s damage increases by one die at 5th level (2d4 necrotic or 2d12 poison), 11th level (3d4 or 3d12), and 17th level (4d4 or 4d12).