The modpack contains many mods, for example Botania, a natural magic mod, terraforged, which makes the landscape generation look much more realistic, or Biom's O Plenty with many new forests, meadows, steppes, tundras and much more.
There are also a lot of creatures to deal with like dragons, cyclops, trolls, etc. To defeat them you also need weapons, because of course there are new weapons and armor to withstand the creatures, but there are also plenty new peaceful creatures that one can discover
the modpack are based on exploration, magic, combat and hardcore
The minimum requirements are 4gb ram for a smooth gaming experience.
Have fun playing!