They are unique to other altars because they can craft any rune in pay-to-play (with the exception of Soul runes) and being able to craft all runes from air runes up to death runes in free-to-play. The altar also can craft the runes without the randomness of the Ourania Altar and also allows players to create elemental staves, as long as the player has the required runecrafting level (the creation of these staves have been removed prior to The Evolution of Combat. They still exist in-game, as they can be received from the dungeon start room or as a drop from the Unholy Cursebearer). Runes crafted on these altars only give 2% of the crafted rune's true experience, so these altars are impractical for training Runecrafting. These altars do not create runes out of rune essence or pure essence