Domain of Pain

You create a cursed aura that is invisible from the outside. Any creature that enters the area or starts its turn inside is instantly thrust into a realm of silent agony. Inside this domain, all color fades—the world becomes monochrome, and their body writhes with unseen torment. When a creature enters the area for the first time on a turn or starts its turn there, it must succeed on a Constitution saving throw DC 15 or fall prone as their body collapses under invisible pressure. In addition, each creature that starts its turn in the domain must make a Constitution saving throw DC 15. On a failed save, they take 3d8 necrotic damage and begin to bleed internally. A bleeding creature takes 1d8 necrotic damage at the start of each of its turns while inside the domain. This bleeding stops if the creature leaves the area and receives any healing or succeeds on a DC 15 Constitution check at the end of its turn. You may chose if an ally rolls this save. A creature that succeeds on 4 consecutive saving throws against this spell is immune to its effects for the rest of the duration. The area is difficult terrain for hostile creatures. At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, the damage increases by 1d8 for each slot level above 5th. This Spell with upgrade at certain milestones and personal conditions are met. (edited) [4:42 PM] Visual & Narrative Details:, From the outside: Completely invisible, silent, and still., From the inside: Everything is black and white, time feels slowed, and a dull throbbing pain echoes in the mind., Optional: You (the caster) can see the domain clearly and are immune to its effects