Tomb Guardian

You summon a spectral guardian in an unoccupied space you can see within range. The guardian occupies a Medium space and remains for the duration.

The guardian has AC 15 and 40 hit points. This creature has a +6 to attack.

Whenever a creature enters a space within 5 feet of the guardian for the first time on a turn or starts its turn there, the guardian makes a melee spell attack against that creature. On a hit, the target takes 2d8 necrotic damage.