(: Add or to your mana pool.)
Battlefield Hollow enters the battlefield tapped unless you control an enchantment.
: Put a 1/1 red Troll creature token onto the battlefield.
, Sacrifice a Swamp: Add to your mana pool.
: Add 
or 
to your mana pool.): Put a 1/1 red Troll creature token onto the battlefield., Sacrifice a Swamp: Add to your mana pool.
