The fact that they can all be played for so little mana allows for their controller to have protection and/or backup if any card is removed
A single Viscera Seer trigger isnt much to be happy about but it quickly becomes too much for your opponents to handle when you draw a card, make a Clue token, deal a bunch of damage, and gain life thanks to something simple like a Zulaport Cutthroat
Sylvan Tutor [Set Up the Perfect Draw] Sylvan Tutor is one of the best green cards if youre into clean one-mana setups
One of the wild things about Doctor Who is that its been around for 60 years and theres so much to cover
Finally, the deck features removal spells like Despark, Hero's Downfall, and Swords to Plowshares, as well as enchantments like Planar Disruption and Sinister Possession that can disrupt your opponent's strategies and remove troublesome threats
Legendary Creature - Human Druid Marchesa, the Black Rose Dethrone (Whenever this creature attacks the player with the most life or tied for most life, put a +1/+1 counter on it.) Other creatures you control have dethrone