Whitesnake

Whitesnake is the Stand of Enrico Pucci.

Pucci awakened Whitesnake as a result of being stabbed by the Stand Arrow when he first met DIO.

It evolves into C-Moon after fusing with the Green Baby, which evolves into Made in Heaven when the remaining requirements from DIO's journal are met.

Physical Appearance
Whitesnake is a humanoid Stand with white skin. He wears a mask and some weird thing on his tormade of leather (looks like something saucy tbh.) On his skin are GΔCTGΔCTGΔCTGΔCT which is the genome sequence of DNA.

Occasional Appearances
In Prisoner of Love, Whitesnake is shown for the first time melted to the wall as he is about to attack Jotaro.

In Torrential Downpour Warning, Whitesnake uses a fucking gun.

Melt Your Heart
Whitesnake's first ability is shown to be illusion creation. When he is first seen, he encases Jotaro and Jolyne in a room filled with his purple goop that melts their brain and shows them illusions.

Another time it is used is when he pretends he is Weather Report.

DISC Creation
Whitesnake has the ability to turn human properties (most notably Stands and memories) into discs. He has albeen shown to turn other things, like his own eyesight, into discs as well.