Kill Taelan 10 times!?

I accepted the Elite Hunt: Highlord Taelan Fordring for the 750 Tokens.

Turns out you need to kill him 10 times, whereas every other fight is only one kill for Elite Hunt?

https://i.gyazo.com/f8cc4c9a93a78ee67cc3ea36c9cbfd21.jpg

I killed him once, but I ain’t doing that 10 times.