Ancient Runes

Ancient Runes are part of the Magical Items category. There are currently 11 different runes and a blank one.

Obtaining

Every single rune is made in the Ancient Altar and their recipes can be found in the Slimefun guide.

The Runes

Basic Runes

There is the Blank Rune, which is used as a base crafting material for the simple runes.

There are 5 simple runes, Air, Earth, Fire, Water and Ender. These are used in low-end Magical Gadgets and to craft the other runes.
After those come the high-end runes, these are all also used to craft Magical Gadgets. These are the Lightning and the Rainbow rune.

Soulbound Rune

This rune can be used to make any item Soulbound. This means that this item will stay in your inventory even on the event of your death.

All you have to do to make an item Soulbound, is to drop the rune on the ground next to the desired item.

Enchantment Rune

This rune will enchant any item that can have enchants in vanilla minecraft.

All you have to do to enchant an item, is to drop the rune on the ground next to the desired item.

Villagers Rune

This rune can be used to reset a villager's trades and profession. After a brief period the Villager will start looking for a job again.

To reset a villager, right click one with the Rune in your hand.