Wizard Lizard, in a Blizzard

[Morophon, the Boundless] Changeling
As Morophon, the Boundless 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.