Arcane Eradicator

A weaponized attempt at harnessing raw magic, this device synchronizes with its wielder's mind, manifesting devastating beams of pure magical energy. The artifact is controlled via a wrist-worn device that links to the user’s mind and requires one full round to charge before firing a 15ft wide beam in a 120-foot line. Any creature the beam would affect must make a DC 18 Dexterity saving throw or take 10d12 force damage, or half of damage on a successful save. Any creature of medium size or smaller that are in the direct middle of the blast must make the saving throw at disadvantage and be pushed back 25ft on a failed save. creatures with immunity to force damage still take half damage.

• Each use has a 5% chance to trigger a wild magic surge.
• If the artifact is charged for three consecutive rounds, the beam expands to a 25-foot width and deals 20d12 Force Damage.
• If fired while near a ley line, the beam becomes 35ft wide in a 500-foot line, and its damage increases to 20d20 force damage.
• Using the artifact costs the wielder 1d4 levels of exhaustion due to the intense mental synchronization required.
• The artifact requires a sacrifice to be recharged faster than normal, the user must expend 4 hit dice and get the highest number on two of them to be instantly recharged, otherwise the weapon recharges at dawn.
• In exchange for spending all of his energy (max hp) the user can fire a line of concentrated damage that is 5 ft wide and 1000 feet long to deal 100d100 force damage, upon which the use immediately becomes unconscious and automatically fails two death saving throws and can no longer cast spells until the weapon is recharged, this ability can be used once every 5 years.

Notes: wearing the watch for 1 hour.