Marvel's Valkyrie & Hulk (Marvel Legends)
"Empowered and driven mad by Asgardian magic, Samantha Parrington attacked the Hulk. The fight that resulted was a battle for the ages. For blocks around, concrete was shattered by the concussive force of their blows. Both combatants staggered away from that fight with little memory of what had actually occurred. Later, as Samantha gained full control of her incredible powers, she joined the Hulk as a member of the Defenders."