| Joel Franey/USgamer, id Software/Bethesda Software Icon of Sin Weaknesses You need to destroy the Icon's armor first.
There'll also be a counter on the left-hand side of the screen that tells you how much of the demon's armor/body you've destroyed, as well as the health bar at the top. Don't bother attacking this if you haven't destroyed all the armor yet, that field still protects it. It's pretty obvious when you destroy a piece of armor, as it'll visibly explode and shatter, revealing skin wrapped in a thin field of red energy.
You'll have to destroy all of the armor before getting to work on the the Icon's body, both of which are divided into eight sections: Like mentioned, the Icon is a boss fight where you'll have to destroy the Maykr armor before killing the demon itself.