Pine Bog enters the battlefield tapped.
: Add or to your mana pool.
Sacrifice Pine Bog: Add or to your mana pool.
: Pine Bog becomes a 2/1 green and black Bear creature until end of turn. It's still a land.
: Add 
or 
to your mana pool. or to your mana pool.: Pine Bog becomes a 2/1 green and black Bear creature until end of turn. It's still a land.
