Mass Effect 2's lead combat designer Christina Norman gives us the skinny on the Sentinel, the character class that has it all.
The Sentinel is essentially the Paladin of the Mass Effect universe, with a variety of offensive and defensive skills and the ability to use both tech and Biotics, making them the most versatile class in the game. They even have armor with a shield around it that harms enemies when it goes down. All they need now is a hearth stone and they'll never fall in battle.