[quote=@The Irish Tree]
Odd question, but would Jayce still be able to use his arm to use lacrima in Edolas without the berry?
[/quote]

to be completely honest I think it would completely depend on how it works. for example if the magic is powered by you then I'm sure it would. but if the magic is activated by the lacrima then it might not. Caits would have to be the judge of that