All that said, in essence, the battle skill was still the [Mountain Slash]. As such, if one masters the skill and understands how the skill works, they can also perform the [Dual Mountain slash], considered to be the second stage or an extension of the skill.
Zhang Fei being one of the elders of the Zhang clan, practised the skill to perfection until he could even perform the [Dual Mountain Slash] on his own.
"You two buy me some time," Zhang Fei asked the two bandit bosses. After exchanging a few attacks with Lin Huiyin, he knew that he wouldn't be able to defeat her in a short time even if he worked together with the two bandit bosses.
He was pressed for time, dawn would soon break out and if by chance the Lin Clan sent someone else to welcome their young miss after getting the news of their return. The situation would turn dire for him.