Create Broodguard

You target a small or medium humanoid you can see within range. That humanoid must succeed on a Wisdom saving throw or become unconscious for five days. During that time, you must spend 1 hour each day casting this spell again. During this time, the humanoid doesn't age or require food or drink. As the humanoid remains unconscious, they slowly transform into a yuan-ti broodguard (see volo's guide to monsters). If you neglect casting the spell on the humanoid before a day ends, the humanoid returns to its full human form and regains consciousness at the end of that day. When the five days end, the humanoid wakes up, now fully transformed into a broodguard servant under your control. The yuan-ti obeys your commands and you decide what action it will take in combat. Only a successful dispel magic or wish spell may undo the effects of this spell.