Maureus in Eiyuden Chronicle: Hundred Heroes has a huge misunderstanding of the meaning of MP. He is sure it means Muscle Power and has been training to be a mage character with this in mind.
On the west side of the Mountain Path Homeward you'll see Maureus standing in between two big rocks. When you talk to him he will demand that someone in your party has enough "Muscle Power" or as we know it, magic points. To meet his qualifications you have to have someone with 300 MP on your team. This is easily accomplished by putting a turquoise brooch on a mage or healer character. We used Francesca at level 33. Once you have it, speak to him and he'll join your team.
Role: Battle
Range: Short
Damage Type: Smash
Defense Action: Flawless Defense - Set up a powerful defense to take 1/10 damage this turn.
Rune Slots: 4
Active Skill: Muscle Boost Magic - A spell that increases physical attack and action speed for three turns. Cost: 1 SP.
Enhanced Skill: Rune of Power - Increases strength by 5%.
Rune of Blind Resistance - Increases blindness resistance by 30%
Mage Combo (w/ Mellore and Gieran) - Deal all enemies light damage. Cost: 3 SP.
Mage Combo (w/ Momo and Gieran) - Deal all enemies moderate light damage. Cost: 3 SP.
Mage Combo (w/ Momo and Mellore) - Deal all enemies moderate light damage. Cost: 3 SP.
Complete Mage Combo (w/ Momo, Mellore, and Gieran) - Deal all enemies massive aerial damage. Cost: 4 SP.
Jacked Combo (w/ Dijkstra and El Alicanto) - Deal one enemy heavy to massive smash damage. Cost: 2 SP.