Potion Core is a core mod packed with new potion effects for other mods to use, such as Not Enough Potions, which adds recipes and brewing for them. On its own it only makes the potions available in the creative menu.
Effects include Trueshot, Recoil, Iron Skin, Diamond Skin, Revival, Slowfall, Step Up, Reach, Climbing, Flight and several teleports, plus nasty ones like Perplexity and Disorganization. Runs on Forge, Minecraft 1.7.10 - 1.12.2.
If your Minecraft server's modlist depends on Potion Core, the panel installs it with one click.