In 1215,king john was forced to sign the magna carta limiting his power. after signing the document, he _ it.

Well he didn't really do anything to it, Pope Innocent III annulled it, leading the First Barons war. (First barons war was a war between England, and rebels, the rebels were supported by France, and Scotland.)

His son, and grandson however kept reissuing the Magna carta to make changes to it, 

I would have to say annulled even though he never actually did it, but the only thing to occur within his reign was the annulling of the document by the pope.