(: Add or to your mana pool.)
At the beginning of your upkeep, Tree Chamber deals 1 damage to target creature you control.
: Tree Chamber becomes a 2/2 green and blue Leech creature with trample until end of turn. It's still a land.
: Add 
or 
to your mana pool.)
: Tree Chamber becomes a 2/2 green and blue Leech creature with trample until end of turn. It's still a land.
