C1425 Four Spirits Fusion

"Four Spirit Fusion?"

Si Xingyu's face went pale, a look of terror breaking through his usual stoic demeanor.

"There's no such thing as Four Spirit Fusion. You're just trying to scare us with tall tales, probably stalling for time..." Dongfang Xiachu retorted with a frosty voice.

Typically, a Battle Spirit Fusion Skill involves just two battle spirits, and even then