The Titan is a force created by the nether heart birthed as the last line of defense to protect the heart and the nether from outside invaders the titan won't harm unless it needs to. The full extent of its abilities is unknown but just the sheer size of it would be enough against many foes. The only abilities learned about them is able to torch anything within a couple of dozens of miles of itself its able to open the fabric of realities to traverse to other universes but it rarely if ever