Aiwe
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Well, we can assume there's an artifact that grants courage, as it's the only artifact whose effect (immunity to mind control for all your troops) can be removed by a magic ball. Or maybe Thorgrim at level 100500 :) I don't think there are any other options; the remaining acquired immunities remain effective even when a magic ball is used.
Wow, I didn't know the artifact was that powerful. I didn't even consider that option. Thanks! Are there any other artifacts that grant something that isn't explicitly stated in their description?
