—In-game description from The Sacred Stones.
The Maelduin (マグダイル Makudairu, lit. Macdaire) is an enemy-only Monster class that is exclusive to The Sacred Stones. The promoted form of the Tarvos class, Maelduins are centaur-like creatures that pursue their enemies with Axes and Bows as their weapons of choice. Maelduins are distinguished from their unpromoted counterparts by a purple-coloured torso.
Maelduins are similar to Tarvos in terms of combat, possessing higher stats than their unpromoted counterparts (significantly higher strength and HP). The only notable difference is that Maelduins are capable of using bows, so fliers should avoid them unless they are using the Fili Shield. They are somewhat stronger Rangers, but sacrifice Speed and Skill for a stronger offense.
Always check the weapons of the Maelduins before battling them, as they may be carrying either bows or axes.
Máel Dúin is the protagonist of Immram Maele Dúin or the Voyage of Máel Dúin, a tale of a sea voyage written in Old Irish around the end of the first millennium.
In Old Irish mythology, Mac Daire, also known as Cú Roí, was one of the kings of the Munster region of Ireland. He is often depicted as a mighty warrior, and he can shape-shift.