Who Said Iron Man Couldn’t Use a Shield?

"Sir, welcome." Several-ton metal blast doors slowly opened, and a cold female voice echoed through the corridor. "Dr. Erskine is in the laboratory with Mr. Luthor." Listening to Singer's report, Jino nodded and led Tony and Ethan inside. The moment he entered, Jino heard Lex and Dr. Erskine arguing. "Why weaken the dosage? Only by maintaining the dosage can we create the most powerful soldiers." "But Mr. Luthor, you cannot ignore this drug's effects on the human mind.