Although I never use that card on myself because it's more useful to monks with greased lightning or others, if you are having that much trouble with MP, you could use the CD reduction card on yourself, then use the MP refresh skill, and then the stun / 5 second extension skill (the lvl 60 one). This way, you will recover the skill faster, and it will last 5 more seconds, which is probably just 1 or 2 more ticks.

Sorry, my memory is too bad to remember the names of skills. :P But that combo would help you with your MP issues.

You can also try to get some gear with Piety to have some extra mana.