Hey there fellow Diablo fan! When playing as a Barbarian in the series, focusing on either a tanky build with high defense and health or a high damage dealer build with critical strike chances can be really effective. For quests, make sure to utilize your crowd control skills to handle large groups of enemies efficiently. In terms of lore, the Barbarians are a fierce and proud warrior tribe from the north, known for their strength and bravery in battle. If you want to dive deeper into their backstory, I recommend checking out the Diablo novels and in-game lore books for more insights. Happy gaming!