Makes vanilla magic more fun by providing the player with more options.
Just adds a dyeable backpack without gimmicks.
Stops Creepers (and optionally other mobs) from spawning where they can see the sky
Fixes a few issues with potion-related systems
Adds a Big Potion and a Small Potion to the game
Removes the ability to use a Firework Rocket to go faster with an Elytra