Your arms become constantly writhing tentacles. You can use your action to make a melee spell attack against any target within range. The target takes 1d10 necrotic damage and is grappled (escape DC is your spell save DC). If the target does not escape your grapple, you can use your action on each subsequent turn to deal 1d10 necrotic damage to the target automatically. Although you control the tentacles, they make it difficult to manipulate items. You cannot wield weapons or hold objects, including material components, while under the effects of this spell.