This 2-foot-diameter black
Sphere is a hole in the multiverse, hovering in space and stabilized by a magical field surrounding it.
The
Sphere obliterates all matter it passes through and all matter that passes through it.
Artifacts are the exception. Unless an artifact is susceptible to damage from a
Sphere of Annihilation, it passes through the
Sphere unscathed. Anything else that touches the
Sphere but isn't wholly engulfed and obliterated by it takes 4d10 force damage.
The
Sphere is stationary until someone controls it. If you are within 60 feet of an uncontrolled
Sphere, you can use an action to make a DC 25
Intelligence (Arcana) check. On a success, the
Sphere levitates in one direction of your choice, up to a number of feet equal to 5 x your
Intelligence modifier (minimum 5 feet). On a failure, the
Sphere moves 10 feet toward you. A creature whose space the
Sphere enters must succeed on a DC 13
Dexterity saving throw or be
Touched by it, taking 4d10 force damage.
If you attempt to control a
Sphere that is under another creature's control, you make an
Intelligence (Arcana) check contested by the other creature's
Intelligence (Arcana) check. The winner of the contest gains control of the
Sphere and can
Levitate it as normal.
If the
Sphere comes into contact with a planar portal, such as that created by the gate spell, or an extradimensional space, such as that within a
Portable Hole, the DM determines randomly what happens, using the following table.
d100 — Result:
01-50 — The
Sphere is destroyed.
51-85 — The
Sphere moves through the portal or into the extradimensional space.
86-00 — A spatial rift sends each creature and object within 180 feet of the
Sphere, including the
Sphere, to a random plane of existence.