Eldraziless Eldrazi combo

All permanents are artifacts in addition to their other types. All cards that aren't on the battlefield, spells, and permanents are colorless. Players may spend mana as though it were mana of any color.

As this enchantment enters, choose a creature type. Creatures you control are the chosen type. The same is true for creature spells you control and creature cards you own that aren't on the battlefield.

Colorless Eldrazi spells you cast cost less to cast. , : Search your library for a colorless creature card, reveal it, put it into your hand, then shuffle.