b997eee8_CCG___What_s_That_Inside_Joke___In_joke
[Card] Emma - The Doctor's Fiancée [Exp.] RD4 [Type] Ref [In-joke] 
She vortexes Regeneration because the Doctor regenerates an outrageous number of times in Curse of the Fatal Death.
Unauthorized Dr. Who CCG - What's That Inside Joke?
In-joke