I can only think of six, the other possibly being Dark Ritual - and if you think Ritual is a problem remember what's coming at the end of this list
[mtg_card]Treasure Cruise[/mtg_card], for example, could be played for one mana, essentially making it like [mtg_card]Ancestral Recall[/mtg_card], perhaps the most powerful card in Magics entire history
By partnering with Games Workshop, the Warhammer 40,000 universe makes its debut among other franchises including the Walking Dead and The Lord of the Rings
If youre a seasoned collector or new to the scene, understanding the appeal of these expensive cards provides insight into why they remain so coveted
If you have both cards down, that means in the average commander game you'll be able to pop a powerful spell on top of your library, draw it, then cast if for two mana up to four times a turn cycle