Optimus Prime / Twilight Sparkle Song - Skillet Rebirthing. Videos of MLP and Transformers ... :P. Smaller episode of Sci-Twi, and with the power of belonging to Unicron. Once opened amulet with the power, Unicron seize and dominate. Meanwhile, Ratchet . Smaller episode of Sci-Twi, and with the power of belonging to Unicron. Once opened amulet with the power, Unicron seize and dominate. Meanwhile, Ratchet . Optimus Prime - Twilight Sparkle Sam - Sunset Shimmer Bumble Bee - Rainbow Dash Megatron - Tirek.