Since launch, hundreds of collectors have registered nearly 3,000 competitive sets
If for some reason you control more than one of half of the pair, you can choose which one to Meld with
Playing The Fourth Doctor, as portrayed by Tom Baker, will allow the player to look at the top card of their library whenever they like, as well as active the Would you Like A...? ability a reference to this Doctors love of Jelly Babies which enables the player to, once per turn, play a historic land or cast a historic spell from the top of their library
It'll give you a nice windfall of Treasure when it dies, which can be filtered into your next big hydra or X-spell
So a player who is less likely to win with a below average four is actually giving up very little trading their fours in for twos, but on balance they gains these super powerful nine draws that are going to auto win