There are some Pokemon out there that look good with a bit (read: a lot) of beef added to them, Greninja happens to be one of them :9

So a while back in Guild Wars 2, me and  Kyuuhari were talking about a comic where a greninja gets given a scarf to use instead of their tounge to keep warm in the snow, I found it really cute and said I wanted it to be canon for the Shiny Greninja I have on Pokemon Y to wear a scarf (his nickname being Shadow), this picture was the result of a conversation about beefy greninjas after I said that. X3~

By the way, he's blushing because he is timid and shy ;)
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Artwork by  Kyuuhari <3