Imagine you and your friends get into a fight with some dude. You have a knife, your boy has a sword, an autocrossbow, and a few other tools, and your other friend has a sword and MAGIC. This guy is straight WHOOPING you and your two friends with his bare hands. Then some brolic guy appears to aid you. You guys all get blown away, except the brolic dude, and then he hits the enemy with a few swoops of the hand and makes him disintegrate into thin air. You wouldn't keep him around for the next time trout goes down?