M Gyarados EX Expanded Deck

Not sure how this is suppose to work as it's the first mega evolution deck I've createdbut I'll put it down here.

X2 Gyarados EX 114/122
X2 M Gyarados EX 27/122, 115/122
X1 Oranguru 113/149
X4 Alolan Vulpix 21/145
X4 Alolan Ninetales 28/147
X2 Alolan Ninetales GX 22/145

X2 Professor's Letter
X4 Dive Ball
X4 Aqua Patch
X1 Ultra Ball
X2 Brooklet Hill
X1 Guzma
X1 Sophocles
X1 Brigette
X1 Lillie
X1 Lysandre
X2 Cynthia
X1 Hau
X1 Acerola
X4 Professor Sycamore
X2 N
X3 Gyarados Spirit Link

X4 Double Colorless Energy
X4 Splash Energy
X6 Water Energy

I don't see any purpose for the Alolan Ninetales GX?