Flain is one of the Infernite Mixels.
Flain is the adventurous leader and known as “the smart one”. But beware, if Flain thinks too hard that massive brain of his will soon catch fire!
Flain enjoys the cookironis with the rest of the mixels. He gives one to Krader, suddenly realizing that that was the last one. Later, Flain appears as part of the Infernite max, and fights against the Cragster and the Electroid maxes until they de-fuse out of exhaustion and Zorch sits on the last Cookironi. Then the Mixels spot a Nixel with a Cookironi box and chase after it.
Flain hears Vulk complaining about problems with the shower faucet. Flain suggests they all Mix and create the Infernites Max to fix it.
Flain and Seismo create a lava slide at the Infernites home, but a Nixel comes in and attempts(and fails) to ruin their fun, and soon, many Nixels invade. Flain and Seismo almost mix, but a Nixel knocks the cubit out of his hands. He then recovers it later to defeat the Nixels.
Flain and Krader want to cross a river in order to reach the other Mixels' barbecue, but create a murp the first time. However, they do get across the 2nd time, but they accidentaly ruin the barbeque.
Flain was released as one of the Mixels sets in the Febuary 2014 product wave. His product number is 41500.
- His name is a combination of the words flame and brain.
- He has been compared to a bird.
- He and Seismo are best friends.
- Along with Seismo, he is best friends with all the Cragsters and usually calls them Cragster Compadre.
- Like Shuff, he is known as the cutest Mixel.