Loki was immeasurably pleased to provide his girl with the distraction the beast needed so that she could make her deadly move. His Frost Giant blood in her veins could prove quite fruitful, he considered as the beast stumbled. The potential energy in her from his darker lineage may indeed provide him with the right way to teach her how to use the darkest of arts.
Trudging up to where Katherine was, he smiled pridefully, "Your uncle is correct, little one, you did rather well but perhaps you need more training. One can't always depend upon their fathers providing distraction to slay the beast at an opportune moment.." he gave Thor a friendly slap on the shoulder.