Svithgard's Vengeful Hand

A spectral hand shoots forth from your own and follows whoever you deem worthy. The hand can travel up to 60ft away and looks like your own. As an action you can teleport to the spectral hand but the spell ends after you end your turn. It can deal 6d12 damage when attacking. You can choose to deal lightning, thunder, fire, cold, or acid when summoning the spectral hand. Add a d12 for each level above 7th.