A way to use warcry without armor? as a Necro

I want to use a warcry fast and not die, and I use energy shield, any tips? any uniques? anything?

Call to Arms Keystone, bind warcry to left click

If you are a minion player, I used to introduce Lead by example node on my medium jewels in order to give me and my minions onslaught when I cast endurance cry. I also used Anomalous Enduring cry in order to add warcry speed to the gem so it makes the warcry seem like instant use.
Also you would want to warcry in crowd of monsters or near unique monsters in order to get 3 endurance charges at once.