The Ancient One (The Lost Caverns of Ixalan)

Descend 8 — The Ancient One can't attack or block unless there are eight or more permanent cards in your graveyard. {2}{U}{B}: Draw a card, then discard a card. When you discard a card this way, target player mills cards equal to its mana value.

NM - $2.00
LP - $2.00
MP - $2.00
HP - $2.00
DMG - $2.00