Flying
After he began training, Yale felt that maybe his problem was that the half-beast form and the wings still felt unnatural to him.
He created those artificially even if the shape was the same as a real half-beast. These beast parts and his bloodline weren't really well coordinated, they seemed to match each other, but they didn't match at all.
After noticing that, Yale started to try to use his bloodline to control his ears, tail, and wings, he needed to get completely used to them, and his bloodline should also recognize them as something natural.
Yale suddenly sensed a strange sensation and realized that he was flying in mid-air without difficulties, he was able to sense that his bloodline and his body didn't have any conflict and everything felt natural sensing all the Frost Winged Wolf parts in his body. However, Yale didn't remember starting to fly or having done something special to reach that state.