Себя. Из некроновского FAQ касательно скарабеев:
"Instead of attacking normally, he inflicts D3 hits on his own unit (or himself, if on his own or in a challenge)"
Лишние вунды, если таковые будут, в отряд не пойдут:
"Q: If you slay an opponent in a challenge, can any excess Wounds be allocated to other models in the same unit? (p64)
A: No."