Venomized iron man

As a storm rages against Stark Tower, the black symbiote breaks free from its glass containment and seizes Tony Stark. The creature and the armor fuse together: the gold-and-red metal transforms into pitch-black biomatter, complete with sharp white eyes, a distorted Arc Reactor, and four mechanical tentacles tipped with repulsor cannons sprouting from its back. Tony’s humanity vanishes behind metallic teeth and a monstrous voice that declares: "JARVIS IS NO MORE. WE ARE VENOM!"