Deadly Siren

Player and character must both yell " DEADLY SIREN!" or "DEADURY SIRANU!" to use.

User summons a spectral siren that sings, when song is cast at a team member or friendly unit, that character will have double movement speed on their next turn.

If cast at an enemy or unfriendly unit: 

At level 1deal 2+d4 psychic damage.

At level 6 deals 2+d6 psychic damage instead.

At level 12 deals 4+d8 psychic damage instead.

Number of uses per long rest:

Level 1-5: 2

Level 6-11: 3

Level 12 and above: 4