Jackal Mask of the Sacred Beasts (Legendary)

These dark ceramic and gold masks are fashioned after animals that are sacred in certain cultures. Each mask's appearance and properties are based on the sacred beast it represents. While attuned to a mask, you can end your attunement to it and attune to a different one over the course of 1 minute, instead of over the course of one or more short rests.

While wearing a jackal mask, you have advantage on Wisdom (Perception) checks and immunity to necrotic damage. In addition, you can use an action to fire a beam of deathly green magic from your forehead at a creature you can see within 60 feet of you. The creature must make a DC 17 Constitution saving throw, taking 7d8 + 30 necrotic damage on a failed save, or half as much damage on a successful one. Once this property of the mask has been used, it can't be used again until the next dusk. A humanoid killed by this necrotic damage rises at the start of your next turn as a mummy under your control. The mummy acts on its own initiative count. On your turn, you can mentally command the mummy if it is within 120 feet of you and you aren't incapacitated (no action required). You decide what action the mummy takes and where it moves during its next turn, or you can issue it a general command, such as to attack your enemies or guard a location. The mummy remains until you dismiss it as a bonus action, until it's reduced to 0 hit points, or until you are no longer attuned to any mask of the sacred beast, causing it to turn to dust. You can only create and control one mummy at a time in this way.