Losing Hireling or Class/Race during combat

[BeniJmnz]

I was reading FAQ's, and i have found this:

Q. The Hireling confuses me. Other than the +1 Bonus, what is the point of the card?
A. It's basically another Cheat! card that lets you swap out the attached Item. But it's vulnerable to the Kill the Hireling Go Up a Level card, and anything that makes you lose the Hireling takes the attached Item with it.

I'm confused with your first answer and this FAQ :/