Marvel:Cybertron

A random ordinary guy died due to god's losing bet. He was reincarnated as Arthur Rimbaud from Bungou Stray Dog's. God gave him a "Transformers System", which allows the protagonist to create the famous robots from the movies and comics. Arthur was given a dimension of his own. But what was the most shocking of all he wasn't back on his old earth, but the famous and yet dangerous Marvel Cinematic Universe. Arthur shrugged, with the help of his system he was sure that even Thanos can't stop him and his army of transformers.