Africa: Level 145
Spear Main + Tarkan + Vampire.
Sometimes the NPC's HP goes dangerously low that having a healer as insurance would be nice. So why not take the Vampire since not only can she tank much better than a staff merc but can also kill 2 mobs at a time.
Spear Main + Monk + Tarkan.
Monk hits like a drunk old man but it takes a lot of turns to beat the Boss here that he is actually useful working together with melee mercs.
Spear Main + Hwarang + Champion.
The objective here is simple, kill the boss at the top right of the map. You can safely ignore the two other bosses.
In this sample run we also had to fight against the deadliest debuff in-game, Item Lag. Had my team stunned and unable to awake for some time.
Hwarang is a good substitute if you don't have a Tarkan as long as you bring a DEF debuffer here. In this run I used Ody as debuffer and Hwarang and Spear Main as damage dealers.
For less stress I'd suggest having double feast (NC+Unity) buffs and Chaotic Ruler title when running this.