One of my characters in my story is a 9 ft tall humanoid. He is pure muscle, built like a professional bodybuilder on steroids. However, he is very fast on his feet and with his hands. This is mostly due to having survived in the wild his whole life, trying to survive through and dominate nature's deadliest predator's. His bulk is due to magic tampering with his genes to sculpt his body like that, but his skill comes from being fast and knowing how to control his mass.