This is pure speculation:
Your enemy wears the shiny gold armor of doom. It has 50 physical armor and 100 magic armor, but you do not know this. You use a skill and see 80 damage, but you do not know if you damaged the armor or the enemy HP. If your skill did physical damage, you broke the armor and the enemy may be hit by physical status effects (some enemies may be immune because of what they are, like skelletons do not bleed). If your skill did magic damage the enemy still has 20 magical armor and any status effect will fail.
If there is still a health bar at enemies you could see if the armor is still there (unless the bar shows the sum of armor+health).
Do you think this speculation is plausible?
Look at this image. It's from one of the arena we were showing at PAX in Boston.
http://www.co-optimus.com/images/upload/image/DOS2_PVPArena1.jpgYou see the grey bar and the blue bar? This is Physical Armor and Magical Armor.
So yes, you see it when you deal damage to the HP bar or you just do damage to the armor. Doing magical damage eat up the magical armor until it's gone. Same for Physical.
