G1 Scorponok has always been a headmaster, same as Black Zarak (though admittedly I don’t think BZ’s head ever came off in Masterforce)
Both the recent titan class figures are these guys
https://tfwiki.net/wiki/Scorponok_(G1)
Are you perhaps thinking about Beast Wars Scorponok? He’s a different character entirely, named after the original Scorponok, and definitely not a headmaster
And his original “ultra class” figure has a vintage reissue coming out now
https://tfwiki.net/wiki/Scorponok_(BW)
