>>10609756Of the big four playsets, Castle Grayskull and Eternia were the creation of toy designers. With Snake Mountain and the Fright Zone, Mattel was playing catchup with cartoon writers, giving the evil factions bases with the same names as invented for cartoons.
There's a design drawing ancestral to the Fright Zone toy dated December 5, 1983, called "Masters Villain Playset", by Ed Watts.
https://battleramblog.com/fright-zone-trap-filled-stronghold-of-terror-1985/>>10609869>The easy fix is that the playset is his early staging ground on Eternia, while his tech is left on Etheria.This was mentioned in the UK comic.
