(Havenwood Bosk isn't a spell.)
Havenwood Bosk enters the battlefield tapped unless you pay .
White and green spells cost more to play.
: Add to your mana pool.
: Add or to your mana pool. Each opponent gains 1 life.
. more to play.
: Add to your mana pool.: Add 
or 
to your mana pool. Each opponent gains 1 life.
