I made a chart of the weaknesses of the original 10, and according to the wiki, diamondhead is strongest alien, since he has only one VERY UNCOMMON weakness : r/Ben10
Classic Ben 10 | Best Ghostfreak Moments | Cartoon Network - YouTube
Ghostfreak | Wiki | Ben 10 Amino
Ghostfreak/Gallery | Ben 10 Wiki | Fandom | Senhor destino, Mutante rex, Ben 10
Ghostfreak Requiem by derp99999 | Ben 10 comics, Ben 10, Character design
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Ghostfreak | Ben 10 Wiki | Fandom
Ectonurite | Ben 10 Wiki | Fandom
Ghostfreak | Ben10Hero
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Ghostfreak | 5 Years later Wiki | Fandom
Ghostfreak/Gallery | Ben 10 Wiki | Fandom
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Would you rather think that Omniverse Ghostfreak's chains ''limit'' his power or is it simply a design detail? : r/Ben10
Ghostfreak | Ben 10 Wiki | Fandom
Zs'Skayr | Ben 10 Wiki | Fandom
Ghostfreak | Ben 10: Ultimate Heroes Wiki | Fandom
Ghostfreak | Ben 10 Wiki | Fandom
Ben 10" Ghostfreaked Out (TV Episode 2006) - IMDb
Ben 10 S 2 E 11 Ghostfreaked Out / Recap - TV Tropes
Ghostfreak | Ben 10 Wiki | Fandom
