When Dash imitated Twilight. Somehow it's always funny when they have each other's hair.

Yeah, Twilight would have cried when she saw that library. 

I had to look up how to spell Armaspi but then I found some mythology I didn't know:

Quote

(Arimaspians) were a tribe of one-eyed men who lived at the foot of the Rhipaion (Rhipaean) Mountains in northern Skythia (probably the Carpathians). They warred constantly with the gold-guarding Grypes (Griffins) of the mountains

I like how they have all different kinds of griffins in MLP. There are so many kinds of dragons in fiction but usually only one kind of griffin.