The combo setup for a magic based assassin is hard as hell to figure out. No matter what, I couldn't reduce magic burst combo cost below 3 MP and I couldn't keep the cast time skills out of the combo. I can't figure out how to boost, or even if I should boost arcane strike's damage outside proration. The fact remains that this skill has terrible MP efficiency and needs either more damage or appropriate status ailment to compensate. Overall, I like the combo style so I might do a few tweaks and try to make use of my heavy hitting skills for high difficulty bosses.