-Stamina resets daily at 6:00 AM PST, 9 AM EST

-Players level 1-49 gain 100 stamina each reset at a max of 120

-Players level 50+ gain 50 stamina each reset at a max of 60

-1 Free League win gives 3 stamina

-2 member party gets 1 stamina every 2 battles

-3 member party gets 2 stamina every 3 battles

Level 1-2 (Tutorial Area):

Just follow the quests. The mobs don't give experience or money. The give a few items though.

Level 2-10 (Forest of Spirits):

Follow the quest chain given to you by the NPCs. They almost all involve mobs inside the Forest of Spirits. You will need to fight a few extra fights to reach level 10 before they let you fight the boss. Don't grind on the Unicorns because they have a single powerful attack. If you need the extra experience fight either the Deer outside the forest of the or the Trees inside the forest.

Level 11-16 (Ruins of Yellow River):

You must finish Greetings by Sima Qian in order to get past level 20. Make sure you finish that quest first even if you despise questing. The Headless Warriors, Soldiers, and Punishers are a nice place to grind. They have decent drops. The moment you hit level 15, try to buy some Sea King Equipment Box or just Ocean, Deep Sea or Red Soul Equipment for your team. If you have the money, you can buy high upgrade versions of the equipment and use them for many levels to come. A +3 will last you until level 35. For me, Spirit Equipment isn't worth it. Just sell the boxes and buy better equipment with it. The archers are a bad place to train because they can hit your units in the back as well.

Level 16-24 (Sea Palace):

At this point you should be able to obtain a fair number of Sea King Equipment Boxes. Use them to make higher enchant equipment. Try to get everyone to at least +2 sets. The quests give a good amount of experience but make sure to reach level 23 before talking to the NPC near Chongqing because you need to be level 23 to continue the quest there. The enemies in the Sea Palace also have a higher rate of dropping Ashen Crystals. You will need 50 for each of your mercenaries except your main character. Upgrading your mercenaries will be vital to grinding fast. Crab Warriors are nice for training. You can obtain a title for killing lots of them if you activate the quest for it near Athens. Fan Dancers and the Blue Dragons can attack your characters in the back row. If you can handle it they're much better for training.