This modpack started from my FullCraft project, intending to add magic and RPG content to its wholistic improvements. I have since added more, including many minor QoL and optimization mods not included in FullCraft, but the heart of the mod is still similar. I would direct you to that page for a better overview of those features, but in short, there are improvements everywhere — optimization, more biomes, more mobs, Curios, more items and structures, etc, while trying to mostly keep to a Vanilla feel.

This pack builds from there. Some of the major mods included are Alex's Mobs, Mowzie's Mobs, Dungeon Now Loading, BlueSky, The Twilight Forest, and The Undergarden. Together, they add many real and fantasy creatures, dungeons to explore, and dimensions with unique enemies and mechanics. For the "magic" part of the title, Iron's Spells and Spellbooks, Vampirism, and Occultism are included. Iron's offers a classic wizarding experience in the form of powerful spells, Vampirism allows you to become a vampire, and Occultism allows you to summon demons for automation and other benefits.

I'm probably forgetting some content, so JEI will certainly be your friend. Many of the bigger mods include guide books of some kind. Also - as far as I know, I can't change default keybinds, so you'll definitely have to rebind things for everything to work correctly. Keyboard wizard, which can be found as a button in the bottom left of the Controls tab, will help a lot there.

NOTE: Expect reasonable stability, but performance may still not be great on lower-end computers; there are a lot of mods in here. This mod may or may not be updated as I playtest it more. Updates are not guaranteed to be compatible with old versions, but most likely will be. May not be compatible with FullCraft saves, since I have removed some mods for the sake of performance.

Egg's MagicCraft