It's logical that a powerful creature with its own will is not going to simply obey its creator. Another cliche destroyed without mercy and I'm loving it!
Is meant to be "Grom", not "Гром", in Cyrillic it sounds kinda different, basically instead of "G" which you're speaking as "G" in "Good", it's more like "CH" in "Chrome".
"Grom" is typical in Slavic languages as "thunder ", but if it's spelled like that, then this is most probably in Polish, it also sounds more deeper like I explained earlier.