C skills Armor Team

In my experience, I tend to only run one Armor March unit on my team at a time. Two seems a little overkill, especially if all of your units also have Pivot/Swap/Repo etc., but I've seen some teams utilize two Armor March units. It comes down to preference, playstyle, and availability.

Ward Armor is generally the most popular option because it stacks with multiple copies, and armor units tend to clump together anyway. Consider a typical "Armor March formation," with your AM unit in the middle and your other three units on its sides. If all of your other units have Ward Armor, that means everyone on your team is receiving +8 Def/Res in combat (with your AM unit receiving +12)

generally speaking, one. In most cases you don't want more than one. In my opinion you want an armor team to have one support styled unit, two enemyphase/mixphase units with breath skills and aether, and one heavy playerphase unit (say Jakob with brave bow and bold fighter or Tharja with raourblade and bold fighter). You generally want a fortify, two goads/wards, and a single armor march. You can generally run armor boots on one of your units to make up for not running two armor march. Running two is effective and all but it hinders your buff potential leaving you with less general power in the long run. The Ward skills are really strong for armor emblem since most armor units are enemyphase and it allows you to buff your allies defenses from a distance instead of needing to be directly next to that ally. Hones and goads are ok but the spd boosts are generally useless. Fortifies are really strong but again are a little harder to use than wards so are a little less consistent.