I am missing him as a challenger. I have purchased Iron Fireside Lantern but I do not know what to do with it. Can anyone help me please Judy

The unlocks "Cursed Effigy, The Tormented" which can be found in the secret tab. If you're looking for the normal "Cursed Effigy" challenger then he is normally an event opponent released around Fireside.

I did want to get "Cursed Effigy, The Tormented" as a challenger. Not the normal "Cursed Effigy" I have the Lantern but what do I do with it to unlock the challenger? Judy

Click on it, there will be an option that says “unlock challenger”

Wow, what a dope I am. Thank you so much for the directions. I am off to vanquish the enemy!!!!!