hysteria fireburst suffix or prefix?

is that a suffix or a prefix and can we roll master craft mods "cannot change prefix/suffix" to roll other mods without erasing the firebust mod?

I don't know which it is but it doesn't matter because essence mods are unaffected by master mods. If you craft the right one and scour, it'll still remove your essence mod and it will waste your money.

The only way to craft with essences is to spam them and hope you get something worth exalting or master modding.