Why is this prodecure setup not working!

I am trying to make a mod mechanic where if you have a custom effect i added called MCA then you can pick up villagers as one of the perks, I am doing this by checking if the player has the effect whenever the player right clicks an entity and if so then checking if a villager is near by and then i plan to make it add a villager item to the players inventory however for now i'm using a magma block to test it. My question is if anyone knows why it won't work and if someone knows how do i fix it. the image below is the setup: