Himmel Soan didn't lose his head. He had learned a great deal from the battle.
It was more complicated than it seemed. One couldn't assume they would win just because they were the more capable side.
One's reaction and strategy could change the final outcome. A lion should give all it had, even when fighting a rabbit. Otherwise, they could fail miserably in an easy task.
"Since you've passed my river, you're qualified to receive some information on the first test.
"The first test consists of five guardians, each guarding one of the five elements. You've probably realized by now that I'm the guardian of water. Once you defeat me, anything involving the water element won't try to harm you again.
"To pass this test, you'll need to defeat the other four guardians. I need to warn you that out of the five, I have the mildest temper. Some of the guardians can be rather blood-thirsty and won't communicate with you like me."