Morophon, the Boundless [Modern Horizons]

Description

Set:	Modern Horizons
Type:	Legendary Creature — Shapeshifter
Rarity:	Mythic
Cost:	{7}

Changeling (This card is every creature type.)
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.