Urza's Saga

I - Urza's Saga gains "{t}: Add {c}."
II - Urza's Saga gains "{2}, {t}: Create a
0/0 colorless Construct artifact creature
token with ‘This creature gets +1/+1 for
each artifact you control.'"
III - Search your library for an artifact
card with mana cost {0} or {1}, put it onto
the battlefield, then shuffle.