(Mistveil Wildwood isn't a spell.)
Mistveil Wildwood enters the battlefield tapped.
Untapped creatures you control get +0/+1.
: Add to your mana pool.
: Add or to your mana pool. Each opponent gains 1 life.
: Add 
to your mana pool.: Add 
or 
to your mana pool. Each opponent gains 1 life.
