b997eee8_CCG___What_s_That_Inside_Joke___In_joke
[Card] Possibility Generator [Exp.] RD1 [Type] EE [In-joke] 
The quote is reproduced in various fonts and sizes not only as a play on "possibilities", but also to reproduce the echo effect in the "Auld Mortality" audio.
Unauthorized Dr. Who CCG - What's That Inside Joke?
In-joke