Wonder Man
Couldn't Iceman still have an imagination if Headlock takes control of his mind.
With the illusion of water in his memory like a mirage in the desert he could battle Headlock with a memory illusion and freezing Headlocks mind.
https://tse1.mm.bing.net/th?id=OIP.sIkwu_MhgD1o7h7qhsyeTgHaKO&pid=15.1&P=0&w=300&h=300
vs.
https://tse3.mm.bing.net/th?id=OIP.k5p80uRJbdtNFDHGbGTb1gHaLM&pid=15.1&P=0&w=300&h=300
With the illusion of water in his memory like a mirage in the desert he could battle Headlock with a memory illusion and freezing Headlocks mind.
https://tse1.mm.bing.net/th?id=OIP.sIkwu_MhgD1o7h7qhsyeTgHaKO&pid=15.1&P=0&w=300&h=300
vs.
https://tse3.mm.bing.net/th?id=OIP.k5p80uRJbdtNFDHGbGTb1gHaLM&pid=15.1&P=0&w=300&h=300