Necklace of Fireballs

This necklace has 1d6 + 3 beads hanging from it.

You can take a Magic action to detach a bead and throw it up to 60 feet away.

When it reaches the end of its trajectory, the bead detonates as a level 3 _Fireball_ (save DC 15). You can hurl multiple beads, or even the whole necklace, at one time.

When you do so, increase the damage of the _Fireball_ by 1d6 for each bead after the first (maximum 12d6).