Pyding

Hardcore challenges that scales from other mods and awarded with powerful and unique Vestiges from unknown God-like creature. Has lore progression and a lot of cool stuff like negative enchantments, anti heal, heal debt, shields, over heal/shields, etc.

Gui for Craft Tweaker that allows you manage your recipes with ease.

Adds craftable summons for 7 main bosses of Cataclysm that can be used inside corresponding dungeons.

Witchery addon with Thaumcraft and Botania implementations. More dark arts, Elf class, delicious magic food and many more!

Adds configurable commands for teleporting to spawn or one of your homes.

Simple to use and hard to abuse! Set Tiers to any items/blocks/creatures to balance your modpack from broken mods.

Protect your structures and buildings by a simple and powerful mod by creating zones with different options.

Adds Cheremsha from famous meme and related items like Glass Wool, Slag Block which can be then converted into obsidian

Adds Mob Inspector that allows you to look at any creature's inventory, hands and armor slots and change its content.