While not quite a proper mana doubler, its still a whole pile of extra mana when considering the cards low cost
The icing on the cake is that this may often win you matches if your opponent ends up throwing away a useful card to the deck
Dark Ritual allows you to take advantage of drawing multiple cards a turn back during the black summer of Magic , it wasn't unusual to see a player drawing 4-5 cards a turn every turn of the game using Necropotence to fuel their crazed game of "holy cow, is this for real?" No other card in Magic has allowed a player to draw so many cards turn after turn so cheaply
For anyone who enjoys maximizing damage, this might just be the ideal deck
Additionally, all of the play mats, dice, and condition markers will have a gold covering on them
Personal Tutor Current Price (via Card Kingdom): $49.99 Tutors, no matter what color, are very powerful