F actor ▁rejo ined ▁the ▁X - Men , ▁causing ▁the ▁team ▁to ▁be ▁split ▁into ▁two ▁separate ▁units . ▁Val ▁Cooper ▁organized ▁a ▁new ▁X - F actor ▁as ▁a ▁government - sp ons ored ▁team ▁to ▁replace ▁the ▁recently ▁dis band ed ▁Fre edom ▁Force . ▁Mu ir ▁Island ▁was ▁greatly ▁dam aged , ▁causing ▁many ▁of ▁its ▁long time ▁inhabitants ▁to ▁vac ate . ▁Pol aris ▁lost ▁her ▁super - str ength ▁but ▁reg ained ▁her ▁magnetic ▁powers . ▁Professor ▁X ▁once ▁again ▁lost ▁use ▁of ▁his ▁legs . ▁Leg ion ▁was ▁left ▁in ▁a ▁cat at onic ▁state , ▁in ▁which ▁he ▁would ▁remain ▁until ▁the ▁lead - up ▁to ▁Leg ion ▁Qu est . ▁The ▁individual ▁X - Men ▁would ▁abandon ▁the ▁team - uniform ▁cost umes ▁for ▁individual ▁cost umes ▁once ▁again . ▁Col oss us ▁was ▁stri pped ▁of ▁his ▁Peter ▁Nicholas ▁persona ▁and ▁rejo ined ▁the ▁X - Men . ▁ ▁Public ation ▁▁ ▁Un c anny ▁X - Men ▁# 2 7 8 ▁ ▁Un c anny ▁X - Men ▁# 2 7 9 ▁ ▁X - F actor ▁# 6 9 ▁ ▁Un c anny ▁X - Men ▁# 2 8 0 ▁ ▁'' X - F actor ▁# 7 0 ▁ ▁Collect ed ▁ed itions ▁The ▁story line ▁has ▁been ▁completely ▁or ▁partially ▁repr int ed ▁in ▁the ▁following ▁volumes : ▁ ▁Ess ential ▁X - Men ▁- ▁Volume ▁ 1 1 ▁() ▁ ▁Ess ential ▁X - F actor ▁- ▁Volume