Alot of people probably don't know this, but the best way to get high hit dragon slayer / crush bullet / bloody art is through Gallon's Roullete (in Gallon's Shop) via Lucky Coins, which are awarded to you after doing Phantasmal World and the new Villanous Rift quests by speaking to Nol in the lab after completing the quest. In ultimate everyone gets #ofPlayers x 1 coins, so up to 4 coins for each player in a 4p game, allowing you to play the roulette 4 times. You can win any of the basic 9star rares with high hit (i.e. I've personally gotten 60hit rares, don't know how high max is here) from there, including other goodies like Vjaya, Diska of Braveman, M&A60Vise, hp and tp mats, etc. Villanous Rift 2 and Phantasmal World 3 take place in VR Spaceship and Seabed respectively.