is there a list of mutants that lost their powers on m-day?
Yeah. Check out 'Decimation' on wikipedia, I'm pretty sure there's a list there.--Spidey:Weapon X 20:55, 31 May 2006 (EDT)
Also, in the "198" article, they talk about who lost their powers and who still has them. --abcdefghijklmno 23:13, 2 August 2006 (EDT)