hmmm early time any mage pt. tanks are not so effective as on higher lvls
from than point on i would definetely go for a setup with 1 PK, 1 or 2 OLs, 1 or 2 GS, 1 GH, 1-2 mages
my thinking is that PK can heal (especialy with ++ skills) and use flame icon while taking dmg (which with armor++ and attributes and skills++ is very very low), OLs can heal hp+cp and if they are 2 1 can use debuffs as well, GS can do enormous dmg from a very good and safe distance, GH the same and with shadow step and hide can get enemy healer, and the mages just to have some good magic attacs. still i dont know shit about the kamael chars so u could easily replace any of those with a better kamael choice.
PS i was in a pvp server and a pt of 4: 1 pk, 1sph, 1ol, 1 gh could kill 7 and 8 of an opposing clan. i played a well equiped sph and did very very good dmg, the ol was pro and healed us very efficiently while debuffing and causing dmg, the gh did nice "surpise" attacks at their healer and the pk was rly rly good and did great dmg/very good healing, aggroed efficiently and used flame icon/angelic icon as soon as he could.
at one point a gs of the opposing clan got well equiped and could deal HUGE dmg before any of us could get to him...