Terrible Rot

Each creature in a 20-foot cube within range is outlined in sickly green and yellow wisps of smoke. Any creature in the area when the spell is cast suffers 2d6 necrotic damage and is also poisoned if it fails a Constitution saving throw. For the duration, affected creatures emit a foul odour in a 10-foot radius.

An affected creature is vulnerable to necrotic damage, and can't benefit from being invisible.