Lol at the tags for the image:

adventure in the comments
it's happening
it has finally happened
it's over
run for your lives
this will end in tears
the end is neigh
xk-class end-of-the-world scenario

Sadly, this does not last long. Discord beats Pinkie in a competition and causes her to lose her alicorn powers.

"In place of a dark lord, you would have a Princess! Not dark, but fluffy and terrible as the dawn! Chaotic as the Sea! Pinker than the foundations of the Earth! All shall have fun and despair!"