Classical Treasure Hunting Boss Battle

Okay, this is such a classic trope!

Fei Fei and Yani exchanged a glance. They didn't feel any tension at all, still finding it a bit amusing. However, they quickly put some distance between themselves, ready for battle.

Both ladies moved quickly, much faster than the thing in front of them. By the time Fei Fei had palmed four butterfly darts in her left wrist cuff, her right hand held a short staff about a foot long.

This was a Commonwealth military-grade Alchemy product, a standard piece of Mysteries Equipment for the military's "Mages." Its performance was just about satisfactory. The purity of the internal energy Crystals wasn't high, but the energy-gathering array was carved with enough precision that casting wouldn't be too sloppy. The outer casing was made of a wear-resistant and extremely hard alloy material, which could also be used as a club if necessary.

Major Fei Na Li was now a "driver," a psionics Mage as she reported herself, and she had to see this persona through to the end.

Yani took a step back. The watch on her left wrist, acting as an information terminal, completed fragmentation, expansion, and final reconstruction in half a second, directly forming a mechanical arm around her wrist with several cannons mounted on it.

It was only then that the opponent finally appeared in their sight.

"Speak of the devil, and he shall appear?" Fei Fei couldn't help but say, looking at the monster that appeared before them.

"...Alright, I really shouldn't have used arthropods as an example." Yani made an apologetic gesture to Fei Fei. It was clear she understood the idiom.

Now, appearing in their sight was a monstrous insect crawling towards them on the ground. Just lying there, it was already over a meter tall, and its length