In case more than one unit can be targeted by a Magic Item, can you use the extra dispel dice provided by a Magic Resistant unit?

I'm thinking Taslimanic Tatooes and Casket of Skulls from the TK.

Thank you

I don't have an official answer to this, but when it came up on another site, the conclusion was that you can use magic resistance from a SINGLE unit that would be effected by the casket. If all your units with magic resistance cannot see the casket (and therefore wouldn't be effected by it) then you don't get any magic resistance.

Thanks for the confirmation, Servant of Isha.

Hopefully I won't need this tid-bit of info, but if I do, at least, I know what to do.