(: Add or to your mana pool.)
Green Watchtower enters the battlefield tapped.
: Green Watchtower becomes a 2/1 green and white Stag creature until end of turn. It's still a land.
: Add 
or 
to your mana pool.): Green Watchtower becomes a 2/1 green and white Stag creature until end of turn. It's still a land.
