User blog comment:ImperiexSeed/Archangels are weak, don't you agree?/@comment-93.132.5.150-20150926194602

Lucifer was in some way dump, even more so than Michael and Raphael. He could just ask a reaper to localize Sam and Dean or use that spell Ruby used to find Dean in season 4.

Sam and Dean could have easily defeated Lucifer in season 5 by shooting him with the Colt and than stab him with an angel blade or ripping out his grace.