Spellcasting

All spellcasting is based on the use of a Writ Aranum. This is usually a amulet of some sort.  They mostly look the same as they are all produced in a magical factory in a placed called The Foundry. Without a Writ Aranum or Writ for short it is not possible to cast spells. Spell casters learn to use the Writ to channel the magics they want to use.  As they practise with these Writs they are ability to channel more and power over time. 

Writ Aranum

The Writ Arcanum (or just the Writ for short)

The shape of spell disks differs, and disk is not always correct. The vast majority are shaped like a disk that in about 1 inch in diameter. They are usually worn like a necklace against the chest. They are made from clay. If you break one open, they have thin layers of metal inside. These layers of metal hold the gathered magical energy, for the caster to use. Spell casters learn how to gather energy into the device and store it better over time, giving them more and more power as they go up in level. 

Construction

The Writ’s are constructed by creating layers of magical sigils in different metals in really thing layers. The first ones were huge items that had to be moved in wagons. Over 1000 years of modification has allowed them to be made as a tiny device that can be carried or worn as a necklace. They are amazing magical devices. 

How Detect Magic works on a Writ

Due to layers of magical sigils they have all magical schools. They technically do not show up as part of a Detect Magic Spell or effect. They are easy to spot when worn by a caster. Most living being give off an aura of magic. The Writ as a necklace shows up as a void in the casters Aura.