A moderately sized modpack focusing on different forms of magic, with a smattering of science mods, and not a single care for balance! That's right, you'll ascend to godhood! ...Eventually
To start your path, we have:
Advanced Genetics: A simple mod you can use to scrape skincells from any vanilla mob and study them. With the genes you discover, you can rewrite your own DNA
Botania: A mod about growing magical flowers. Harness the powers of mana and create interesting flowers that can do anything from poison mobs to turning stone into ores
Necromancy: Find or craft your own limbs and raise an undead minion to protect you.
Mystcraft: Bored with the overworld? Delve into a new age you've crafted yourself
Witchery: Grow a few flowers, make some potions, and then start your own coven. Your new witch friends will sometimes visit you and help with rituals, or you can summon them in the heat of battle!
Project-E: The world's most overpowered mod. Everything has a value, and those values can be traded off for anything else, in an equivalent manner of course.
And a "few" other mods to spice up your adventure