Cosmic Devastation

Drawing upon the inexorable powers of distant cosmic abysses, the caster channels waves of volatile energy focused directly onto a single target within 20 feet. The target must succeed on a Constitution saving throw (DC = 8 + caster's proficiency + caster's spellcasting ability modifier) or take 10d10 force damage, half as much on a success. Upon using this spell, a unique gravitational anomaly occurs; the gravitational field around the target begins to rapidly fluctuate. For the next minute, the target intermittently loses control of its own mass, causing varying chaotic effects. Roll a d6 at the beginning of each of the target’s turns. The result dictates the gravitational distortion the target experiences for that turn: 1-2: The target becomes drastically heavier. Their movement speed is reduced to 5 feet and they suffer disadvantage on all attack rolls and Dexterity saving throws. 3-4: The target becomes weightless. They are lifted 10 feet off the ground, have their speed reduced to 0, and can only be moved by external effects. The target gains disadvantage when resisting forced movement (e.g., spells, physical pushes). 5: The target rapidly oscillates between normal weight and weightlessness, gaining disadvantage on all actions as their body is overwhelmed by the changes in gravity. They also take 2d6 psychic damage from the physiological stress. 6: The target experiences a moment of balanced gravity, gaining a brief respite. They recover 10 temporary hit points and can act normally this turn. Once cast, this spell creates visual distortions and shifts in the space around the target, as if reality itself has warped to consume the target in cosmic chaos. If the target is reduced to 0 hit points during the 1-minute period, they disintegrate into a shimmering wave of particles, leaving no trace.