Originally posted by fangirl101The Spectre was not fully powered in those instances iirc. If Spectre is fully powered and wants to crush Myx, IMO he has no trouble doing it. They write him low-powered entirely too much.
parallax wiped away all of existance and even gave the spectre a nice fight. Joker used mxy's power to trap the spectre. Plus, Mxy has shown that when he's ready for it, not even all consuming destructive force can take him down.