When Foundry-works enters the battlefield, return a land you control to its owner's hand.
: Add to your mana pool. Foundry-works doesn't untap during your next untap step.
, Sacrifice Foundry-works: Add to your mana pool.
: Add 
to your mana pool. Foundry-works doesn't untap during your next untap step., Sacrifice Foundry-works: Add 
to your mana pool.
