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Castle Grayskull got the legacy. Snake Mountain got a working microphone. Both Mattel playsets, both complete, filmed side by side. Mark Taylor sketched Grayskull seven years before He-Man existed and called it Dwell of Souls. He wrote a backstory that stayed in his notes: seven levels down into bedrock, each one bending space and time. Snake Mountain came from Colin Bailey and an abandoned jungle design, with a demon face (Evil Alf), a moving jaw, and a voice modulator built in. Which one wins? Tell me in the comments. #mastersoftheuniverse #castlegrayskull #snakemountain #vintagetoys #80stoys