Captain Toshiro Hitsugaya. Yamamoto's Spiritual Pressure is aligned with the element of fire, while Hitsugaya's is aligned with the element of ice, as one might expect based on their Zanpakuto.
Trying to stop Toshiro Hitsugaya from attacking ... After finally unleashing his Zanpakuto’s Shikai and Bankai, he has become an absolute monster that very few Bleach characters can match ...