Demogoblin is endowed with superhuman strength, stamina, agility, reflexes, and resistance to injury. He has a magical ability to mentally control and levitate his glider and propel it at high speeds. He can project hellfire from his hands. He can throw two types of "pumpkin bombs." He has Orange pumpkin bombs similar to those of the Green Goblin or Hobgoblin. And Black pumpkin bombs cause their target to be overwhelmed by massive feelings of despair and helplessness. These powers are all derived from magic.
Apart from his physical and magical advantages, he is knowledgeable about military training and hand-to-hand combat absorbed from his time merged with the Hobgoblin. Although deranged, the Demogoblin is highly intelligent.
Demo wins for sure