The visual flicker of the shadow giant moving between the Material Plane and the Shadow Realm has a physical effect on viewers. A creature that starts its turn within 30 feet of the shadow giant and that can see it must succeed on a DC 18 Wisdom saving throw or be unable make more than one melee or ranged attack on its turn and unable to use bonus actions or reactions until the start of its next turn.

A creature that starts its turn within 30 feet of the shadow giant and that is maintaining concentration on a spell must succeed on a DC 18 Constitution saving throw or lose concentration.

It can’t affect or be affected by anything on the Material Plane while in the Plane of Shadow.

Magical darkness doesn’t impede the shadow giant’s darkvision.

At the start of its next turn, it returns to the Material Plane in an unoccupied space of its choice that it can see within 40 feet of the space where it vanished. If no unoccupied space is available within that range, it appears in the nearest unoccupied space.

While in the Plane of Shadow, the shadow giant can see and hear 120 feet into the Material

At the end of each of the shadow giant’s turns, it must roll a d20. On a roll of 11 or higher, it enters the Plane of