In this pack of 250+ mods you start out in a vast beautiful world using the tectonic terrain generation and terralith biomes mod. Giving you a nice cozy look with iris shaders and a handful of visual improvements like wakes and visuality. Not only are there plenty of new structures to explore there are also new bosses from the bosses of mass destruction mod, giving you more challenges and loot at end game.
More mods included such as
Accessories/Trinkets
AdoraBuild Strctures
Better Combat
Better End/Nether
Dynamic Sounds
The Aether
Deep Dark
etc.
There are many more mods to dwelve into.