This article is really old, so the system is likely already named, but as a Nintendo fan, I would like to suggest the name Lylat (the main system in the Star Fox games). Multiple planets are toxic, which reminded me of Zoness, a planet polluted by Andross. There's also Timfinselka-Artag, the water planet, and what do you know, Lylat has one too; it's called Aquas, and in Starfox 64, Andross had a bioweapon there (that might explain the low amount of life). Rakhoutk Zuraik is a somewhat barren planet with venom sacks, so if there's a planet Venom, that's it. Finally, Irnamoi Pevesye's the floating islands are reminiscent of a Smash Bros. stage, and being a prominent Nintendo franchise, Star Fox has had plenty of Smash Bros. stages, including Corneria, which I suggest naming Irnamoi Pevesye (because you can't have Lylat without Corneria!). I think this was a great idea, and if you ever do something like this again, I might throw my hat into the ring again.