Re: Sir Agravaine Way Too Hard For Myth, Any Tips?
Single hit spells like Medusa or Ninja Pigs, supported with Myth blade, Spirit Blade, Myth Trap, Feint, Time of Legend, and Colossal. Orthus doesn't work well with traps. By this level you should have a pet that gives you another blade or trap of some sort that stacks with the others. Lots of storm shields. Satyrs and a life mastery amulet. Wiki doesn't show the guy casting myth shield, but if he does bring a few pierces. If you haven't trained life to Satyr you can get Satyr treasure cards at the bazaar, possibly supplemented with Dryad TCs. If you haven't trained Feint and Colossal you've failed at spending training points.
Pick off the Red Thorn Knight minion first. Once he's down you should be able to keep up with incoming damage via a combination of shields and healing spells, and wear down the boss at your leisure.