Chapter 141:
The main reason the battle with Hanzo didn't turn into an all-out summon beast brawl was the poison of Hanzo's salamander, which could kill nearly anything that came close, including summoned beasts. Tsunade's antidote was specifically tailored for human use; she didn't have enough to safely treat massive creatures like Gamabunta, Katsuyu. So, the Sannin had to face Hanzo on their own.
As for Orochimaru's snake, Yamata it was one of Orochimaru's many "unique creations."
Watching the battle unfold, Jiraiya couldn't hide his astonishment. Despite his injuries, he was so caught up in what he'd just witnessed that he seemed to forget his own pain.
He'd seen Orochimaru summon a snake, inject it with Tsunade's antidote, and then send it out with the Kusanagi sword for support. But the strangest part was when the snake… vanished?
"Can snakes actually go invisible?" Jiraiya muttered, bewildered.
Tsunade looked equally stunned. She had seen the black snake before during their mission to the Land of Whirlpools, but she hadn't realized the extent of its abilities. The way it seemed to blend into its surroundings, disappear, then reappear, it was unlike anything she'd ever seen.
"Is this snake not only capable of speech but also has immobilization and camouflage techniques?" she asked, incredulous.
Orochimaru, noticing their expressions, gave a casual shrug. "It's not invisibility. It's just color-changing camouflage."
"Color change? Like a chameleon?" Jiraiya asked, catching on quickly. But the concept sounded ridiculous. Could a snake really adapt a chameleon's abilities?