Talisman of the Sphere

When you make an Intelligence (Arcana) check
to control a Sphere of Annihilation while you are
holding this talisman, you double your Proficiency
Bonus on the check. In addition, when you start
your turn with control over a Sphere of
Annihilation, you can use an action to Levitate it
10 feet plus a number of additional feet equal to
10 x your Intelligence modifier.