(Hallowed Aqueduct isn't a spell.)
When Hallowed Aqueduct enters the battlefield, return a land you control to its owner's hand.
All creatures have Forestwalk.
: Add to your mana pool. If you played a land this turn, Add to your mana pool instead.
: Add 
to your mana pool. If you played a land this turn, Add 
to your mana pool instead.
