(: Add or to your mana pool.)
Copperline Vents enters the battlefield tapped unless you pay .
: Copperline Vents becomes a 2/1 green and blue Bear creature until end of turn. It's still a land.
: Add 
or 
to your mana pool.)
.: Copperline Vents becomes a 2/1 green and blue Bear creature until end of turn. It's still a land.
