Abandoned Factory

{t}: add {u} to your mana pool.
{t}, Tap two untapped artifacts you control:
create a Thaumaturge token. (It's an artifact with {2}, Sacrifice this artifact:Draw 2 cards or gain
4 life.)
{2}, Sacrifice an artifact: draw 1 card and gain 1
life.
"Where pipes and pistons walk and breathe."