WHAT IF.. we know what's that pool cloning Pinkie?
We got the chanche to look at the relevant journal entry from twiligt sparkle's day-to-day book, here: initial observation: subject pinkie pie (unauthorized) utilization of the "mirror pool" (reference: ancient myths of the everfree)
Chapter 2
This sucks... I haven't felt this out of things since the last time I got a hangover from binging on apple cider. I got dragged out of bed to say goodbye to the princesses, and not even twenty minutes later, I'm on the next train outta Canterlot. ...