We will start at the standard Mid-Range. Good Luck, I won't be holding back. :p
Kirabi looks on as he sees Nagato standing before him and his eagerness is apparent as he chuckles loudly. The anticipation of fighting such a worthy and brave fighter has him itching to fight and he prepares himself for battle by first withdrawing the only two swords on his back, besides Samehada and stands ready pointing them at Nagato.
Kirabi: *Laughing* Awww Yeah~~~ Let's see what you're made of kid!
With a simple crossing and slashing of the swords in a X-Shaped fashion the immediate burst of chakra through the weapons sails forward to start the battle off leading with a crimson blast of chakra towards you. At this particular point, Kirabi waste no time in arcing around the small section of land in between the two ninja towards waterfall that would be to his right and your left.
(Suraisu Shinku no Nami) - Slicing Crimson Wave
Peeking over his shoulder to keep you in his sites as he jumps along the rockface, quickly placing his weapons back into thier holster and then begins forging Monkey → Rat → Tiger → Dragon → Horse → Dragon in quick succession and creating a large snake that rises from the pool of water below to rush Nagato from his left side in a attempt to knock him back should he be attempting to follow as well as carry him off soon after.
(Suiton: Ja No Kuchi) - Water Release: Water Snakes Mouth
By this time, Bee has traversed the waterfall and looks down to see the area of course drenched in water, and he forges a single handseal and his Lightning Chakra burst forth soon after directed straight into the waterfall to fill the area with electrized water, creating a major enviormental hazard for Nagato as the whole area fills with the surging electricity.
(Raiton: Kangekiha) – Lightning Release: Wave of Inspiration