This trick requires you to attack the Trunked or Trean enemies North-West of Chek. Have the skills WarShout, Faeire Attack, and Faerie Charge each on a different person. Next, put all twenty faeries in barracks (you will need to open seven barracks). Finally, have the first character use War Shout (12 hits), the second use Faerie Attack (46 hits), and third use Faerie Charge (66 hits) for a total of 124 hits and roughly 30000 damage. That should take care of any Master requiring a number of hit for a skill.