The abilities were: [Big Stomach King][Spiritual Immunity][Instantaneous Movement][Otherworldly Space][Golden Cicada Shell][Unconventional Path][Sharp][Thunder Element][Dark Eye]
Most of these abilities were those of his contracted partners, Little Ying and Bai Jingwei, while he had just one ability, the Thunder Element, himself.
Mu Rufeng's first choice was the overwhelmingly powerful Thunder Element Skill, no question about it.
Second was Instantaneous Movement; whether to chase down monsters or flee, it was undoubtedly god-tier.
After some thought, Mu Rufeng's third ability selection was Dark Eye. Amid the murky gloom, Dark Eye was indeed a very important ability.
As for Otherworldly Space, it opened up a space inside the stomach for storage—a purely auxiliary ability.
After the game transformation, with an item slot of 999+, there was no worry about storage issues.
Regarding the other abilities, none were as good as the few Mu Rufeng had chosen.