Nazarick's Trespasser

Sacrifice Nazarick's Trespasser: Put a +1/+1
counter on target creature.
"Hm? You're a religious magic caster, so I want to
perform experiments on you. Perhaps I'll change a
portion of your memory to see what will happen if the
god you believe in is replaced with another."
—Ainz Ooal Gown to Roberdyck Goltron