When Stadium Park enters the battlefield, return a land you control to its owner's hand.
: Add to your mana pool. Return Stadium Park to its owner's hand.
: Stadium Park becomes a 2/2 green Snake creature until end of turn. It's still a land.
: Add 
to your mana pool. Return Stadium Park to its owner's hand.
: Stadium Park becomes a 2/2 green Snake creature until end of turn. It's still a land.
