Mana: 72Int: 32Wis: 30(21% per practice)
Requires: bone prison
Usage
cast bone fortress
The 'bone fortress' spell is a high level necromancer tooth spell used to rescue and protect entire groups when in danger. It creates a near-invulnerable fortress of bone around your group, separating you from the enemy and offering temporary refuge.
You must be on solid ground to cast this spell, and it has a very high tooth cost that increases as the size of the group increases.
