When Thicket Caves enters the battlefield, return a land you control to its owner's hand.
: Add or to your mana pool.
Sacrifice Thicket Caves: Add or to your mana pool.
: Return Thicket Caves to its owner's hand.
: Add 
or 
to your mana pool. or to your mana pool.: Return Thicket Caves to its owner's hand.
