Jesus, this world is scary right now. I recommend everyone to try any martial art class, it's a great addition if you're already going to the gym and it's going to make you even stronger. If you want to train your legs and elbows try muay thai, boxing for hand strikes and krav maga if you're fighting against multiple people with weapons such as knives for example.
Storm clouds, fire and steel
Death from above make their enemy kneel
I have no idea of what their saying,
But I heard Sabaton, so most likely some Swedish guys