Hydaelyn

When you cast this spell, choose one humanoid within range that can see and hear you, and that can understand you. The creature must succeed on a Wisdom saving throw or become charmed by you for the duration. While charmed, it undertakes to perform any services or activities you ask of it in a friendly manner, to the best of its ability. The creature can make a Wisdom saving throw to end the effect if the task might cause it harm or conflicts with its desires, with advantage if you or your companions are fighting it. The spell ends if the task would result in certain death. When the spell ends, the creature knows it was charmed by you.