Talk:Banner of Command/@comment-25411532-20150802163432/@comment-27124958-20160811023253

My bad...I didn't read the promote effects, just the fact that Promote gives the minion magic damage immunity.

Seems like a glaringly obvious thing to miss but going through the item changelog we can see that the magic immunity effect was added to Promote later in BoC's existence, where the initial version of Promote on this item simply boosted the minions stats.

My guess, by looking at the stats, is that Promote was coded for efficiency, using the same variable for the bonus Armor and bonus MR, given that they are both equal for each promotable minion type so it will obviously be easier to simply change the variable when tweaking the stats for Promote rather than reworking the code entirely to separate them, as there are no consequences to giving a Magic Immune unit MR in the live environment.