Zhou Wen didn't have many Terror-grade Companion Beasts. The Golden Battle God dropped most easily. The other Terror-grade Companion Beasts were relatively rare.
Zhou Wen couldn't bear to fuse Companion Beasts like Grim Reaper No. 10, Limitless Demon Dragon King, Prisoned Dragon, and Banana Fairy. The remaining Golden Battle Gods, Flaming Monarch, and so on didn't seem to be a good fit for Fiend-Armored Tiger Soul General.
After some choosing, he didn't find a suitable Terror-grade Companion Beast to fuse with the Fiend-Armored Tiger Soul General.
In terms of skill compatibility, Grim Reaper No. 10 and Prisoned Dragon are more compatible with the Tiger Soul General, but these two Companion Beasts have something special about them. It would be a waste to use them as fusion material. Zhou Wen thought for a moment and couldn't bear to part with them. Finally, he decided to try with a Golden Battle God first.