Sethan

Sethan is the stand of Alessi featured in Part III: Stardust Crusaders.

Abilities
Age Reversal: The stand takes the form of Alessi's shadow with a distinguished shape, the most prominent feature being its large eyes. Anyone standing in this shadow will age backwards at a rapid speed. Polnareff, who touched it for a split second, ended up as an approximately 7 or 8 year-old child, while a woman probably in her twenties stood in it for ten seconds and was reverted back into a helpless fetus.