You’d want /gml ultra_set(char_crystal, 2) for that IIRC - /mut is for mutations, while ultra mutations are a different thing
/gml ultra_set(char_crystal, 2)
/mut
This command does not work, it says that it needs 3 arguments, got 2
In that case, /gml ultra_set(char_crystal, 2, true)
/gml ultra_set(char_crystal, 2, true)