Rank 9 Baka here. So ideally, Attack speed and pen, with Executioner and/or stone cutter sword. The only crit item you would want is wind Demon, as it assists with chasing. It, along side fatalis (Which is a MUST) allows for some of the best chasing in the game. Other items you could use are frostbound hammer, Titans, Jotunns (I don't use it, but to each their own), and Qins Sais. Crit is a decent way to go, but unreliable for Baka. You need consistent damage. Crit offers great burst if you've got deathbringer, but you need three Crit items to even make it worthwhile. I used Crit up until rank 4. If you're going down that road, Use Deathbringer, Rage, and Wind Demon. Good to see more Baka players, I don't think he gets enough love.