Tony Stark, Master Inventor

If Tony Stark is equipped with a Stark artifact, Tony has +2/+2.

Whenever you draw your second card each turn, create a tapped Invention token (a colorless artifact with "Discard a card, {t}: Surveil 1").

Whenever an artifact enters your graveyard from your library, draw a card.

Sacrifice X untapped Inventions: the next Stark artifact that you cast this turn costs {x} less to cast.