[Astromancer]

Although Dungeon Fantasy isn't Yrth/Banestorm, some of those assumptions can be used. Assume that the populace came to this world from elsewhere. Groups where dropped down in choppy clumps, a village here, a monastery or nunnery there, ships and travelers lost and strangely found.

The conventional dungeon fantasy world is based either on Tolkien or Howard, well just dump a Buddhist Monastery with a powerful and charismatic abbot in charge into an area of confusion and fear. Let the abbot unify the people. The local churchmen and the pagans can't talk to each other, but the Buddhist monks can.

Several centuries later, a Buddhist monk is just a monk with a slightly different culture. He has a rivalry with the Christian monks, but they behave themselves as a matter of honor.

Now, Buddha forbade miracles, so the Buddhist monks don't use miracles. However, they'd be practical about magic and practical skills. Buddhist monks would be up front Wizards that the locals could trust for esoteric knowledge and pragmatic assistance.

Picture a small isolated village beset by orcs. The Buddhist monk doesn't simply smite the orcs, he asks, "Why do these orcs attack here?" and "How do they do it?" Then he would analyze the problem and snip it in the bud.

So your Buddhist Monk would be a war mage optimized for strategic thinking and information gathering.