Anti-magic and magic resistance

Ok I have a question concerning thos two skills.I wondered if they stack with each other on character who has both of them and is noblesse.For example, will the M def of Eva's templar increase if the char is also elemental summoner and has became a noblesse, using both classes at the same time

using both classes at the same time

cant do that as of now

You can't use both classes at a same time. Only 1 and buffs disapear when you swich between classes.