Piggles

I am new to the modding world of BG, and am by no means affluent in it yet, so forgive me if this question comes across as silly.

I was wondering if it were possible to add a wild surge effect to an item, using NI? An example would be effect 73, which rests your character after a spell is cast, rendering the spell available again.

Also, what is the skill/item that reduces the casting time of your spells? Not improved alacrity, which removes the round between spells, but rather the effect that removes the cast time from each spell completely.

Any help on either of the subjects above would be much appreciated.
Thanks.

Edit: I should have mentioned this was intended for the Baldur's Gate series.

Edit: The spell in question is Daer'Ragh's Mental Agility. I tried copying the spell effects to an item using NI, but got an error while saving. The same error occurs whenever I make any sort of change to an item and try and save it within NI.