Mythril can be acquired from either donating to the game and trading your Syphon for Mythril, mining it from a high enough mine, buying it from other players, or getting lucky with your keys at the Big Fish Casino Roulette Wheel in Blackdale. Now you're also able to acquire Mythril Ore which you get from AP. How do I get AP you ask? Vote for the game information on this is found at Voting/AP. You can use the WarHammer from EverDark Mountain's to turn your Mythril Ore into Mythril. Mythril can be used for Energy, or Mythril Weapons, which are the third most powerful weapons in the game at the current time. To buy these weapons go to the Mythril Man in Blackdale.