Serialized printings make rare Doctor Who cards highly valuable and sought after by collectors in the secondary market
Legions Landing is our other card advantage engine
Ensure the weakness, resistance, and retreat cost are placed in the correct areas and are the proper size
There are a number of reasons why (some of which I'll cover later), but at the core is this: they have plenty of individually powerful cards, along with powerful tribal bonuses
Exact Words: As clarified in the FAQ, she can include cards in her deck as long as they contain words "heals horror", even if it means they heal it on themselves (like Peter Sylvestre, a Survivor-class "Ally"), or in very specific circumstances (like "Cheat Death", a Rogue-class card which triggers on defeat via damage or horror, restoring a portion of health and sanity)