(: Add or to your mana pool.)
When Copperline Summit enters the battlefield, return a land you control to its owner's hand.
: Copperline Summit becomes a 2/1 green and red Leech creature until end of turn. It's still a land.
: Add 
or 
to your mana pool.): Copperline Summit becomes a 2/1 green and red Leech creature until end of turn. It's still a land.
