Though there will be just over 200 different cards in the MTG Doctor Who set, this number drastically increases when adding in alternate art cards with some cards having full art and showcase art variants alongside the standard version
Worldwake (2010) brought Card not found, which requires an Island, so its basically half blue and probably pretty playable in Limited, although not having played that specific format, I cant be sure
Another common damage outlet is Hateflayer, a card with an untap ability that deals damage meaning if you can tap it for enough mana to untap itself to deal damage, you don't need to do anything else
Potentially my favorite card in the set, Light-Paws is a crafty little two-drop that grants a kitsunes blessing on your Aura-based decks
The black and white ones, at least
Does Legacy legal Hymn to Tourach see more play in Legacy than Legacy banned list headliner Mind Twist