Mega Man X was part of the Marvel Universe Gamerverse subline 2pack from Hasbro in 2017.
Amazon does have a couple of these in their Marketplace for around $20. Ebay seems to be a bit cheaper though.
FrontSideBackSize & scale Head replaced with a classic Megaman Head replaced with a classic MegamanComparison with Megaman 66 figureFigure PromoSet PromoCarded image
