Assassin's Glyph

While casting this spell you inscribe and Object with a glyph.  While casting this spell the caster must hold the image of the intended target in their head and whisper their name 3 times to the glyph. The Glyph is set to trigger when the target is in range of the Object. 

Once the glyph is inscribed you give it to A creature of your choosing (known herein as 'Assassin') If you can get the Assassin to take the object willingly, they have disadvantage on their Saving throw, Wisdom. When the Assassin comes within 120' of the targets, the glyph activates. When the glyph activates the assassin is compelled to raise their hand and point at the target, optionally the Assassin will speak a message up to 25 words preselected by the caster at time of casting.  "Down with the Monarchy" / "Thus die all traitor" While in the possession of the assassin the Glyph learns their Mannerisms and vocal patterns to make this message seem completely legitimate. Target may choose to make a Insite check at casters save DC to determine that the Assassin is being compelled and not acting of their own accord (DM discretion) Once the hand is raised a Ray of Necrotic/ Radiant / or Force (Casters choice), flows out of the casters raised hand to strike target. Spell attack roll at with casters Spell attack bonus.  The Assassin is then released from the effects of the spell. 

The Ray deals 8d10 Damage of Chosen type to Target; Dex saving throw (Caster DC) to half the damage.  When cast with spell slot higher than 5th each additional level will add 1d10 to damage Per level of spell slot.