Talk:Heimerdinger/@comment-24228596-20140120204827/@comment-4636093-20140120210201

Banner of Command is core on most Heimerdinger builds because it drastically increases the damage his turrets deal from 42(+12.5%AP) to 48(+14.4%AP) per shot, and that's just for his regular turret's normal shots, the lazer also benefits from it and the super turret even more too.

As for the stats it gives, it gives 80AP and 20%CDR. Which is better than Morellonomicon if you discount the mana regen (which you can do so because Heimer has really cheap mana costs). Stack it WITH Morellonomicon to hit that important 40% CDR and also give yourself a useful healling reduction.