The last Doctor card in the Blast from the Past set is The Eighth Doctor, a card that forces the player to mill three cards when it enters the battlefield, and then allows them to play a historic land or cast a historic permanent spell from their graveyard - whenever they use this ability, the chosen card is exiled when it leaves the battlefield
#9 Garnet, Princess of Alexandria Sagas that trigger dice rolls, random effects, and storybook chaos
Sounds fine on the surface, but I can think of a bunch of sacrifice-oriented decks that would just laugh at this
The key ability Im looking at here is the -1 to make a 4/4 Rhino token
Giving -X/-X rounds this out, evading most forms of protection
It can be a great turn 1 play in those decks that lack reliable treasure generation or land fetching possibilities