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Yup, Banshee had a nice 3-page entry in #1, ending with his death.

7 is technically warp speed, but they classify people who can arrive pretty much anywhere instantaneously (Dr. Strange, for example) as 7 as well

I'm pretty sure 6 is light speed, 186 000 miles per second, so they just rounded up. And that leaves 7 as warp speed.