The City of Kaladesh

{t}: Add one mana of any color.
{t}: Add {e}
{e}{e}: Artifact Creatures you control gain
+1/+1 until end of turn.
{e}{e}{e}: Destroy target Artifact.
{t}: {x}: {e}{e}{e}{e}{e}: Make X 1/1 colorless servo creature tokens.
{t}: {x}: {e}{e}{e}{e}{e}: Make X 1/1 colorless thropter creature tokens with Flying.