War of Emperium is the guild-PvP hook that makes Ragnarok feel like Ragnarok. For a new or returning player, the important question is not only which class levels fastest, but whether that class has a job in siege.
- Acolyte to Priest: party sustain, buffs and recovery.
- Swordsman to Knight or Crusader: frontline pressure, defense and body-blocking space.
- Archer to Bard or Dancer: party utility and control once the server meta develops.
- Mage to Wizard or Sage: area denial, elemental pressure and control tools.
- Thief to Assassin or Rogue: disruption, pressure and pick potential.
- Merchant to Blacksmith or Alchemist: economy value first, but useful guild utility later depending on balance.
The practical advice is simple: if War of Emperium is your goal, do not choose only by solo leveling speed. Choose a path your guild actually needs.