Ingenuity, Factory Carrier

When Ingenuity, Factory Carrier enters the battlefield, create 2 3/3 colorless Vehicle artifact tokens. They have Flying, "Whenever this creature attacks or blocks, you may draw a card. If you do, discard a card." and Crew 1.
When Ingenuity attacks, after this combat step, there is an additional combat step. Then, if Ingenuity was crewed by one or more Rigger creatures, regenerate each artifact you control.
Crew 4