u4gm: Best XP Routes by Class Build in Diablo 4 Season 9 In Diablo 4 Season 9, maximizing XP isn't just about dungeon choice—it's also about aligning the dungeon with your class build. Each class thrives in different environments, depending on whether they focus on AoE, DOTs, mobility, or sustain. Knowing where your class shines can drastically improve your leveling speed....