The Primordial Arbor

Creatures you control and creature cards in your library and in your graveyard have all names of nonlegendary creature cards in addition to their
name.
Planeswalkers you control have all planeswalker
types in addition to their type, and planeswalker
cards in your library and graveyard have all
names of legendary planeswalkers in addition to
their name.
It is equally nothing and everything.