Heimdallr

“Once the horn sounds, the battle will not stop.”

As the patron saint of Rainbow Bridge Bifrost, Heimdallr has extremely keen eyesight and hearing, monitors every move of the giants, and guards the realm of the kingdom of God. When Ragnarok came, he blew the incomparably huge horn, and even the creatures far away at the end of the world could hear it and join the battle. It's just that the power of the horn of war is far more than that. It is said that once it is truly mastered, it can span the long river of time and space.