It struck Loki as an oddity that Katherine would just hack at the beast with a spear but he held his tongue. The girl had to stand on her own two feet, even though he desperately wanted to tell her what tricks to use to daze it enough to slay it cleanly and quickly. Mjolnir's blow against its head was enough to make it swipe dangerously close to his daughter and Loki saw a spot of red in his vision.
The roaring was deafening, the stench of fresh blood from that beast was disgustingly metallic. "Katherine, you can do this. Do not underestimate it or you..." he said, distracting her as he sent a vision in the opposite direction to attract the beast's attention away from his fragile girl.