Arituk's Arcane Demise

You gather the arcane energy from yourself, the environment around you, drawing from all creatures around you, and even leeching from the Arcane Weave itself. You gather all of this arcane energy and focus it into the palm of your hands. You can shoot this ball of extreme gathered energy at a point within range, and each creature in a 15-foot-radius sphere of the chosen point, will feel the arcane power blossom forth and grasping into the targets body and mind, and entering into them. Each creature has to make a Intelligence saving throw, suffering 15d6 Psychic damage on a failed save, and half of that on a successful save.

Targets that fail their saving throw, will have their Intelligence score lowered by 1d4 until the end of the creatures next turn.

To gather and pull so much energy to summon forth this spell, it requires you to use the normal spell slot of a spell of 6th level, and 1 additional spell slot of your choice. You cannot cast cantrips or any other spell, the turn you used this spell.

At Higher Levels. When you cast this spell using a spell slot of 7th level or higher, the damage increases by 2d6 for each spell slot.