Always check for new codes to get free rerolls for Breathing and Clan types.
Use time-limited quests like the (delivered to Data at Slayer HQ) for high XP rewards. 💪 Strength & Combat Power SLAYERS UNLEASHED GUI (LEVELS, STRENGTH, AND MORE)
Once you hit level 600–800, leveling becomes significantly "easier" as you gain access to more efficient farm spots. Late Game (Lv 800–1600+): Always check for new codes to get free