It was the 3rd folio that supplied one.
Sc. 3.
"Natural rebellion done in the blade of youth,
When oil and fire," etc.
The context would suggest blaze to any one, as it did to Theobald.
"The nature of his great offence is dead."
He means Helena, but I do not see how 'nature' applies to her. Perhaps we should read motive; or some other word.