Born from the merging of Charles Xavier's and Magneto's psyches, Onslaught became the physical manifestation of the resentment that both men had against mankind.

However, the target of Onslaught's animosity would soon grow to include mutants as well.

This Marvel: Crisis Protocol pack includes Onslaught and Onslaught Crisis Cards that can be used to either create a campaign or mixed with existing Crisis Cards to be used as normal.