Not to be confused with Slekeleon
The Plaguing Hulk resembles a giant Skeleton Orc, similar to the Slekeleon and distinguishable only by the green mist in it's ribs. It has a slow attack speed and movement speed, however, also has one of the most powerful melee attacks in the game with it's high damage and very large attack range. The Hulk also appears to have an invisible, aura around him which slowly damages players within, although the damage tends to be hardly noticeable.
Like most bosses, DPS from both Heroes and Towers is the most effective way of dealing with it. Melee Heroes are the most prone to his attacks, and it is suggested that they attack him from behind to avoid his large ranged sweep. Quickly back away whenever he is about to swing, as his arm hitbox extends a bit behind him as well. Avoid engaging him directly if he has aggro on you.
Be careful with tower placement, as his attacks can easily hit any towers directly behind barricades.