When Glacial-wood enters the battlefield, return a land you control to its owner's hand.
: Add or to your mana pool.
: Add to your mana pool. Put Glacial-wood on top of your library.
: Regenerate Glacial-wood.
: Add 
or 
to your mana pool.: Add 
to your mana pool. Put Glacial-wood on top of your library.: Regenerate Glacial-wood.
