(: Add or to your mana pool.)
When Howltooth Tower enters the battlefield, sacrifice it unless you pay 1 life.
, Sacrifice a Swamp: Add to your mana pool.
, : Target blocking creature gets +0/+1 until end of turn.
: Add 
or 
to your mana pool.), Sacrifice a Swamp: Add to your mana pool., : Target blocking creature gets +0/+1 until end of turn.
