Why is Sandal so powerful? He also has a small chance of spoiling the plot of Inquisition for you if you contact him enough.
However, you’ll get him right away at the end of the game, and have survived swarms of Darkspawn just outside the final boss, ready to sell you any last-minute supplies. He just hangs around the tents for most of his adventure, ready to lend a hand. This unassuming dwarf joins your camp in Dragon Age: Origins, bringing his merchant father with him to find his weapons.
