Michael, Grand Tinkerer

Affinity for artifact creatures.
The first artifact spell you cast each turn costs
{2} less to cast and the first artifact spell your
opponent's cast each turn costs {2} more to cast.
{3}, {t}: Add a mana crypt, sensei's diving
top, or foundry inspector from outside the game
into your hand. This ability can only be
activated as a sorcery.