Mech Lord

The second strongest machine summoner, she's unlike her predecessors in the fact that she is weaker than both the Beast Lord and the Bird Lord. However, this doesn't reduce her status as a large threat, as she can summon strong machines like the Satellite Stars, can heal them greatly with Life Shower, can lower all the resistances and stats of the party with her Broken Whistle skill, and can summon an strong Tower Guardian with her Guardian Call Lv. 3 Stored Attack, which can cause large damage. Make sure to defeat her before your stats get dangerously reduced, or before you get overwhelmed by many strong machines.