Animated Minecraft PvP Texture Pack Pack Nation 70k by Jaba and Pack Nation is a very, very popular animated PvP Resource Pack. The pack works with Minecraft 1.8.9, 1.8.8, 1.7.9 and most previous versions. According to Pack Nation there will also be a 80k special Resource Pack.
Simple 3/4-step install below is recommended!
1. Install the Optifine HD Mod
2. Run Minecraft.
3. Navigate from "options" > "Resource Packs" > "Open resource packs folder".
4. Drag and drop Pack Nation PvP Texture Pack into the folder that just opened.
If you don't want to install Optifine HD you can skip Step 1.
Pack Nation 70k animated PvP Texture Pack Screenshots