If you do, you may play the exiled card this turn, and mana of any type can be spent to cast it
Whenever a creature dealt damage by Madame Vastra this turn dies, create a Clue token and a Food token
At the time, not much was revealed about him, so he was only seen as an unexpected side, but his identity later revealed was nothing more than an act played by Asien , and looking at the nuance that he has played all kinds of characters over a long period of time, this can also be seen as one of the foreshadowings that hint at his love of acting
But honestly, I recommend diving headfirst into the flavor here
Disguise isnt an activated ability
Use the power of the card in the graveyard to determine how much damage Lie in Wait deals to the target creature