True Invisibility

Multi Target spell: Bonus Action if only used on yourself, costs 1 action if turning allies invisible

You and up to 5 willing creatures become invisible upon casting for 5 turns or if an audible attack is made, this includes verbal spells, any sort of talking, yelling, whispering or noise made by any items on your character. When the invisibility is active, you cannot be detected under any circumstances except accidental. The penalty for using Sadamulen magic applies after invisibility wears off.