Tag Procedure Assistance

Hello there! I seem to be having a little bit of an issue with the tags.

I want to group up a bunch of items and then if you hold said item, you get a potion effect. I didn't want to individually set each item so I put them all under a tag. I then used the procedure to detect the tag and if that item is in the main hand of the player and is under that tag it should give that potion effect. My problem seems to be that although they are all under the tag, they aren't giving the potion effect.

It may just be an issue on my part as I'm a little inexperienced with tags at the second but I'll list what I have and maybe someone will spot an issue with it