The Tale of Tamiyo (Duskmourn: House of Horror)

Legendary Enchantment Ñ Saga - (As this Saga enters and after your draw step, add a lore counter. Sacrifice after IV.)
I, II, III Ñ Mill two cards. If two cards that share a card type were milled this way, draw a card and repeat this process.
IV Ñ Exile any number of target instant, sorcery, and/or Tamiyo planeswalker cards from your graveyard. Copy them. You may cast any number of the copies.