Ibuse

Overview
Ibuse is a venomous salamander and Kroehling's signature summon. He was large enough for his summoner to stand on top of his head and when battling alongside Ibuse, Kroehling was powerful enough to fight, and eventually, overpower all three of the Sannin.

Abilities
Ibuse was a powerful summon, shown from his participation in combat against several powerful shinobi and emerging unharmed. In the anime, Ibuse has shown a great amount of raw strength, being capable of easily toppling trees with a single leg. Ibuse was able to release a Poison Mist from his mouth, which was capable of making the entirety of a victim's body numb just moments after inhalation and may eventually prove fatal, although these effects can be counteracted with the correct antidote. The poison must first be generated and then stored for a total of five minutes within Ibuse's body before it can be expelled again. Ibuse was also capable of concealing himself and navigating underground. He could then resurface beneath Kroehling's enemies and swallow them, trapping them in his mouth until they have succumbed to the fatal effects of the poison.