Altar

An Altar is a structure used to channel the power of a demesne. This structure must be placed in the very center of a demesne and whoever wishes to to gain its benefits must then use it to attune to the demesne. The first person who attunes to a demesne is considered its owner. Doing this requires only a bone needle with the owner's blood. Once the first person has attuned to a demesne others may attune as allies. Doing this requires a Ritual of Friendship.

At its most basic attuning to a demesne grants one benefit: while within the area of influence (about 1 chunk) attuned players receive a refreshing regeneration effect. Other effects can be added through the creation of Totems. An altar can also be used to power certain magical machines as well as performing certain rituals such as Summoning.

There are two types of altars:

The stone altar is a very basic structure which can be used to to quickly gain access to the power of the demesne but is somewhat limiting. No matter how powerful a demesne they are tapping is, stone altars only channel as much power as a level one. Additionally, they cannot be used with totems.

The marble altar is the preferred form, and can support totems and channel power based on the strength of the demesne, but is more expensive to create.

Stone Altar
Place 4 stone brick blocks in the 4 central squares of the demesne, height does not matter, only x and z coordinates. Right click one of these blocks with your dowsing orb.

Marble Altar
If you started out with a stone altar you must destroy it first. Only one altar may be present in a demesne at a time. To create a marble altar place 4 temple marble blocks in the 4 central squares of the demesne. On top of those place 4 gold bars. Right click on one of the pieces of temple marble with your dowsing orb to complete your altar.