Diah, Queen of Harmonies

Changling
When this creature enters the battlefield,
search your hand, graveyard, library, or exile
for a card named "Menat, The Harmonizing
Harp" and put it on the battlefield.
Harmonize 5 - {w}{u}{b}{r}{g}{t} - Other creatures
you control get +1/+1 for each other creature
you control that shares a type with it until the
next end step(If you control 5 or more creatures
with the same type, this card gains this effect)