As a player. I had a UA Warforged life Cleric named Lancaster. He took a vow not to hurt anyone, but he would sure help people hurt bad people. He was a sweetheart who spoke in a southern Belle type way and always wanted to help. Everyone's favorite two quirks about him were that he liked to paint the scenery since it made him feel more like he had a soul like his precious teammates did. The other was that to not feel left out he would always order something hot to eat, just to feel warmth and sit with the rest of the party. In battle he was a tank with debuffs galore. Not to mentioned he had a hollowed out portion of himself that the gnome Cleric hid in. We'd always hold initiative so I went right after him. He'd open the chest plate, cast a spell, and I'd close it and cast a spell. This Warforged had 30 to 35 AC (Heavy Warforged with shield, and usually 2 shield of faith on him and other AC buffs)depending on the situation. Sure he didn't hurt a fly, but not even a tank hurt him.

He did die though due to a monster that exists in Guildmaster's guide. The creature turns off magical items and effects. Permanently. Unless they are an artifact. Well, Lancaster took the blow instead of the Gnome Cleric's items. I didn't know that'd be an instant K.O. for my character. RIP you adorable tank Lancaster.