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Hogwarts: Merging with everything grants ten thousand times the potent
Fuse with a dragon and transform into a humanoid dragon, becoming immune to all physical and magical attacks. Fuse with a Niffler to extract its digging trait. Amplified ten thousand times over, a single thought is enough to construct an entire underground world. Fuse with a phoenix to obtain the Rebirth Through Fire trait, enhanced by a ten-thousandfold critical boost. "Hmm? I've got a mouth ulcer." Instantly, his entire body erupts into flames and is reborn! Fuse with an Occamy to extract its size-altering trait. Enhanced by a ten-thousandfold critical boost, he transforms into a giant humanoid titan!