Not sure why you're using a double attack Durga if you're using Mercury Riser. Double attack takes priority over critical attacks. Focus on 1 style: critical or double attack. Critical is obviously better because you don't need to invest a lot of DEX plus the critical hits sounds better.
Luck's a better stat to invest in due to additional resistance to status effects, perfect dodge, critical chances, and higher ATK.
I think this one should give you the best ASPD as well as keeping an ideal CRIT build if you are really into that
+9 Mercury Riser with Vanberk Card
Black Frame Glasses with Nightmare Card
Four Leaf Clover (lower)
Dragon Vest with Ancient Mimic Card
Dragon Manteau with Baphomet Jr. Card
+9 Black Leather Boots with Odium of Thanatos Card
2x Rogue Treasure or 2x Bradium Brooches with Kukre Cards
+9 Glorious Jamadhar (if you don't have it, use a +7-+9 Durga with Mobster or The Paper Card)
Having an Alchemist class with Alchemist Spirit Soul Link and throw Berserk Potion at you should give you 5% better ASPD than Awakening Potions as well as Impressive Rift from a Maestro. VIP buffs, Agi Up/Blessing Scrolls, and +20 AGI food should easily boost you to 193 ASPD no problem if you have no access to the previously said suggestions.
Edited by CeruleanGamer, 08 September 2011 - 08:51 AM.