Equestria is torn a part by an extremely dense and infinitely powerful mineral dubbed "Equestrium". A rush for this mineral pits the Celestian controlled north against the Luna controlled south in a civil war.
A sudden and savage changeling invasion is threatening ponykind, forcing Celestia to issue the Fortress Equestria Decree: the country's border must be hold at all cost. Now, ponies and changelings are locked in a bloody conflict, with no end in
Explosions,sentries,teleporters,Scatterguns,Alicorns,Equestria,Ghost Mare. Problems are all over Music Clef,and she needs help from the pony-fied versions of the nine mercenaries from TF2 to defeat Ghost Mare. Can the nine mercs control their magic?