This skill is a regular skill for some new upcoming monster. It does damage and/or applies a buff/debuff. Whatever. The attack or defense it performs does not really matter, in addition it allows you to use an item.
Given the current restrictions on item use, it might not be utilized by many, but I am getting to the point where I am willing to try unusual skills in some monsters skill sets. For example, I used to get rid of all of the physical skills, but now I am deciding to keep some. So I think even given the limited places you can use items, I would still like a skill like this.