Use the following steps to find Rider, the game's toughest monster. Go to Mutko. After passing through the Tomb, enter Mutko from the south side. Then, enter the cave in the upper left corner. Have Eshrin headbutt the crack in the wall. Enter the opening. Go through the next three rooms. You should find a treasure chest and then a dead end. You can find Dragon Tear in the chest, as well as Rider. He has about 400,000 HP. To make things worse, he regenerates half of it each round. He can also cast some dangerous attacks, such as Disaster and Primus. Use Pilfer to steal a very valuable item from him -- King's Armor, which has Def 100.