Am i missing something here?
5 mana for a 30 second buff that doesn't stack with rage or primal scream?
and is a level 4 spell? This wouldn't even be a good level 1 spell. Its only useable when your taking alot of hits aka main tank. Even there its not that useful because of stacking problems and when it wears off you may just dir from hp loss.
Change make the +2str/con moral bonus last 20-30 seconds and make the spell last
6 seconds per caster level and have extend effect it.