Yesu Origin

• Yesu's primary ability allows them to breath fire
• They treat lava like water
• Yesu's second ability allows them to launch themselves into the air
• Yesu can briefly levitate and double jump
• When punching something, Yesu can inflict slowness
• When sprinting Yesu have speed 2
• Yesu are immune to hunger and poison damage, but they are also immune to healing and regeneration
• Yesu can heal their friends by sacrificing some of their own health (save toolbar activator)
• It's unknown why but all Yesu refuse to wear armor less than diamond
• When Yesu are not sprinting and having fun they have slowness 2 

And yes, I intentionally refer to them as Yesu constantly, because I find it amusing  ¯\_(ツ)_/¯