Does anyone know what a mojo sylesti is, and how u know a sylesti is one????

It was a feature in an older fall fest, except I do not think it returned this fest

"
Mojo for Hexamora is returning again for this year's festival. Hexamora is a Witch Doctor and a Mojo Master. Visit them and they will tell you about the art of Mojo Collecting. Even better, they will be holding a total of 32 contests throughout the entire festival where you can compete against your fellow players to see who can collect the most Mojo of a specific species over the course of an 8 hour period. Those who place in the top 20 for each contest will receive a unique Exclusive Themed Pet from Hexamora and the Title: The Hallowed.

In order to collect Mojo, you must first obtain a [Mojo Collector]. These can be found from other features of the festival, purchased from the Festival Shop for Chocolate Coins, or purchased from the Diamond Shop for Diamonds. Once you have Mojo Collectors, visit the Fall Festival Zone and enter a battle against the species of the current contest. Then, use your Mojo Collector to steal the Sylesti's Mojo! If successful, you will gain one point towards the current contest. Take an important note, the lower the Health of the target, the much higher chance the Mojo Collector has of working!

In addition to the contests, when you steal a Sylesti's Mojo, you have a small chance of obtaining an Exclusive Themed Pet of the current contest automatically! Lastly, if you collect enough Mojo, you may even become a Mojo Master yourself.

"

They should bring it back. Its sounds fun

If they aren't coming back this year, then how come the mojo collectors are able to be used????