Pennywise, the Dancing Clown

Changeling (This card is every creature type.)

As Pennywise, The Dancing Clown enters the battlefield, choose a creature type.

Spells of the chosen type you cast cost
{w}{u}{b}{r}{g} less to cast. This effect reduces only
the amount of colored mana you pay.

Other creatures you control of the chosen type
get +1/+1.