Originally posted by Draco69
In JLA: Earth 2, J'onn was going at Mach 12.In Rock of Ages, J'onn was matching Superman Blue at Mach 20.
So he could definitely speedblitz.
Also J'onn's Martian physiology enables him to change his organic systems to anything he desires. He can even shrink to microspopic size and alter his physiology to breath water. I wouldn't put it past him alter his physiology to the point where the "blood pull" would be nulliefied. He has complete psychic control over his physiology. I also wouldn't say that pulling the blood out his system would entirely work. He can just make more blood similar to the way he remakes a limb or two.
Also intangibility could nullify Mag's iron blood pull technique...
Not fast enough before Magneto simply puts his shields up. And were those combat speeds, or were they travelling speeds? There's a huge difference.
Maybe, but Dr. P did have him realing for a while with the blood trick. He could do that while simultaneously sucking out ALL his life energy this way:
http://img295.imageshack.us/img295/2629/magdrawslifeenergy8et.jpg
Or he could screw with the electrical impulse's in J'onn's brain. And the deprevity of blood to his brain would keep him out long enough for Magneto to do something else.
And I doubt intangibility would save him from the iron in the blood thing. It didn't exactly work out for Vision:
http://i10.photobucket.com/albums/a140/MightilyOats/Magneto88.jpg