If people would like clans, then surely if their character worships a god, then clans should be splits into religious factions. I can't really see a paladin of Tyr working with a priest of Bane or Mask etc. Allied gods (such as Ilmater and Tyr) might have clan members in one clan, a kind of light
and dark
side to it all.
------------------
"The time came to reveal his link to Ilmater; Hawk stood up, removing the sword from his chest. The other party members stood in disbelief as a full revitalised Hawk smited his opponents with Tyr's might."