Originally posted by ExodusCloak
Being Omega or not has nothing to do with it, Jean Grey was once mortal, so it is possible to effect her. She's not so much tampering with cosmic power it's more earth history.
Youre not accounting for the retcon. Jean Grey is the Phoenix made flesh. The Phoenix took ker form in the previous multiverse as well. Wanda could not wipe out the Phoenix. Youre making assumptions about the scale of Wandas power. All we have to go on are Wandas comments referring to the warping of reality and Romas pertaining to a global alteration.