Enter the red Moon

The Holder of the Tear conjures up the pain and sorrow of Yumital, creating a portal to another dimension called: Cage of Nightmares. With a constant Bloodmoon centered in the sky, red lights shine onto the bloodflooded floor.

The trapped victim gets pierced by countless black rods, coming out of the ground.

The Damage begins with every start of the victims turn, but everytime the victims turn end, it can do a WIS save to escape the dimension. 

The Caster does not take damage, while inside the nightmare realm, but if the victim escapes, after just being pulled in (i. e. first turn inside the Cage), the caster takes 1d4 psychic damage.