The stones absorb XP, but you do not need to MS 2 Mesos fill the stones, but need at least 1 xp. They have a capacity of 500Million XP, and turn into XP potions after completion of all the stones. There is an 8 hour codlin between stones which causes the MINIMUM time required to be 22 hours to complete the 5th job advancement. Once youre done, Congrats! You now have fifth job... But theres still a long way to go. Youll get a core gemstone which gives you your first core, your fifth job skill for your job! The Arcane RiverThe Arcane River is the first new place released during fifth job. You require Arcane Force to deal more damage in this area, similar to Star Force fields. There are no kanna safe spots, meaning you cant macro and have kishin, not gonna be that easy. There are also only a few maps which Kannas can hang on a rope and be safe. These Maps are the Map with Angry and Joyful Erdas, Joyful Erdas, Angry Erdas, Rocky Erdas and Robust Soul Erdas. All other maps are not safe for Bishops or Kannas.The Arcane River is split into three sections. The Oblivion lake, the Cliffs and the Cave of Rest. Having Less Arcane force than what is required will cause you to do half damage to the mobs while having more can increase your damage such that you can deal twice as much damage than normal. Oh and all drops are party drops which means that youll have to fight over Core Gemstone and Arcane Symbol drops. The Arcane River has a very long quest line which needs to be completed in order to receive daily missions and the arcane symbol, which brings us to the next topic:Arcane Symbols & Arcane ForceArcane Symbols can be obtained from the website: https://www.mmoah.com/maplestory-2