Meta-Tricker

Meta-Tricker is an unknown type of shapeshifter who transformed himself into Blaize a long time ago. He is among the high-ranked ones with shapeshifting abilities from ancient times, who can turn into various kind of species and copy every abilities. Meta-Tricker is set to make his debut in Super Mario Bros. X: Alternate Kingdom, where he is faced for the first time at the end of Venom Woods. Meta-Tricker also leads the troop of Duplighosts. The "False Blaize" will have a similar role to Duplighosts and False Bowsers in the game.

Background
Long ago, the shapeshifter had amnesia, having no memories of his past, not even remembering his true name. It's said to be a terrible past. Blaize eventually recruited him in his army, thinking he could be of use for him. Blaize also gave him the title "Meta-Tricker".

A few years earlier before the events of Alternate Kingdom, Meta-Tricker often tricked Varun, Marvin and Doshi by disguising as any kind of people they had met or saved, making difficult to find who Meta-Tricker is. However, he was somehow defeated by the three.

Alternate Kingdom
In Alternate Kingdom, Mario the gang, thinking to be actually Blaize, had encountered Meta-Tricker in Blaize's form for the first time in Venom Woods, who knows everything about the unnatural disaster of that forest-themed landscape.