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Keywords are:  'spellgroup warrior barbarian blood skills skillgroup'

Barbarian blood skills:
 valor                                     18 war
   berserking                              21 war
     revenge                               30 war
     blood rage                            35 war
     clobber                               26 war

These skills and rituals are commonly known as barbarian blood skills,
and are used to prepare for battle as well as fly into berserker rage
in combat.