On level 8, cadavers start to appear. Our hero found a sword back on level 5 or 6, but also levelled up their intelligence to 8. Continuing to wield the wand adds a +2 bonus to intelligence, providing an offensive strength of 8+2=10. But wielding the sword adds a +4 bonus to attack strength, giving an offensive strength of 7+4=11. So it makes sense to switch to the sword to attack the cadaver, who is enlarged in the inset.