If cards are removed from your graveyard after that point, such as by exiling Jack-o'-Lantern from your graveyard to pay for its mana ability, this won't affect whether you can legally cast Graveyard Shift, even if that reduces the number of mana values in your graveyard to below five
Carfolite told me that was the number one way he can identify a counterfeit
No more Bandlands, Bayou, Plateau, Savannah, Scrubland, Taiga, Tropical Island, Tundra, Underground Sea or Volcanic Island
Imperial Recruiter is often discussed in the same breath as Aluren, given how reliably this two-card combo will win the game
Ideally, you can chain some together, and since Jafar says you gain one lore when you draw a card, you use this combo to gain 20 lore without questing