[quote=@Webmaster]
<Snipped quote by souleaterfan320>

The issue is Crona's body structure. It's made with Silicon blood instead of Carbon-based, increasing the weight and strength. Its skin is also made of condensed Carbon. You could pierce the skin, but not the blood.
[/quote]

Ooh! Great! 
*I crack my knuckles*
I can temporarily alter the Carbon skin in the area I make contact.