Ashe's Illusory Beast

By gathering threads of shadow material from the Shadowfell, you create a Large shadowy beast in the shape of your choosing in an unoccupied space that you can see within range. The illusion lasts for the spell’s duration and occupies its space, as if it were a creature.

When you create the illusion, and as a bonus action on your turn, you can move the illusion up to 30 feet. At any point during its movement, you can cause it to make up to two attacks against an enemies adjacent to it that you can see. The attacks can be made against the same target, or multiple targets. Make a melee spell attack against the target. On a hit, the target takes 2d8 psychic damage.

The illusion is tangible because of the shadow stuff used to create it, but attacks miss it automatically, it succeeds on all saving throws, and it is immune to all damage and conditions. A creature that uses an action to examine the beast can determine that it is an illusion by succeeding on an Intelligence (Investigation) check against your spell save DC. If a creature discerns the illusion for what it is, the creature can see through it and is immune to any damage caused by it. 

At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, the damage increases by 1d8 for every other slot level above 4th.