This is PixelPackPlus++ which is obvioulsy a pixelmon pack with some added mods such as chisel and mo bends for a better experience. This modpack should be updated quite often.
Install PixelPackPlus++
Step 1
Installing a modpack using the Technic Launcher is easy. If you don't already have the launcher downloaded, visit our download page to get the latest version.
Step 2
Type in the modpack name (PixelPackPlus++) or paste the following url into the search box.
Step 3
Finally, click Install at the bottom right of the launcher after you select PixelPackPlus++ from the list on the left. The launcher will handle everything else!