The Eldritch blade utilizes arcane spells for defense and utility, while dual wielding two Kukri for offense. To summarize, the Eldritch blade has: -26 BAB, allowing 6 attacks per round one hand -perfect two weapon fighting, allowing 12 attacks per round un-buffed -access to level 9 arcane spells at caster level of 21 -access to a single epic spell, Vampiric Feast