Anxietie

Make happy ghasts faster with a special enchantment only while riding them

Adds shouts from Skyrim into Minecraft

Adds crop markers/labelers, scythes, and lets you fall on farmland with leather boots on without ruining it

Adds crimson and warped boat variants that can be ridden on lava

Adds customizable macros for moving in Minecraft

Furnace variant that smelts stones faster

Adds fireflies to Minecraft as promised by Mojang