Ghost Rider's supernatural attacks bypass Iron Man's technology, and the Spirit of Vengeance cannot be defeated by conventional weapons.
Iron Man's suit is one of the most advanced weapons platforms in Marvel, but it is fundamentally technology โ and the Spirit of Vengeance operates outside technological boundaries. Ghost Rider's hellfire burns the soul, not the body, meaning Tony's armor provides zero protection against it.
Tony's repulsors and energy weapons can damage Ghost Rider's physical host body, but the Spirit within simply reconstitutes. Iron Man would need mystical weapons to permanently defeat Ghost Rider, and his standard loadout does not include them.
Tony's intelligence is his greatest asset โ he would quickly realize his conventional weapons are ineffective and adapt his strategy. He might try to contain Ghost Rider with force fields or specialized containment, but the Spirit of Vengeance has broken free from cosmic-level prisons. Meanwhile, Ghost Rider's Penance Stare would target Tony's guilt over his weapons manufacturing past.
Ghost Rider's hellfire bypasses Iron Man's armor to attack the soul directly. The Spirit of Vengeance is immune to conventional weapons, and the Penance Stare could exploit Tony's considerable guilt over his past.
Iron Man's genius could develop mystical countermeasures, and his flight lets him maintain distance. His repulsors can damage the host body, and containment technology might temporarily restrain the entity.
Ghost Rider wins through supernatural attacks that technology cannot counter. Tony's genius could eventually find solutions, but in a standard encounter, his arsenal is the wrong tool for fighting a divine entity.
Ghost Rider also fights
Iron Man also fights