| Spell type | Defensive buff (green spell) |
| Requires | Earth Magic 10+ and the Erdgeist True Name |
| Enhanced by | Elemental Scion with Earthborn Adept doubles your rank |
| Casting time | 3 seconds |
| Duration | 20 seconds (modified by green magic) + 10 per rank |
| Enhanced mana cost | 50 mana makes duration permanent |
Chthonic Transfer is a defensive buff which converts 1 point of Aura per rank in Earth Magic into a point of Brawn, Mettle or Size, whichever has the highest base stat. In the case of a tie, the points will be split among two (or even all three) of the stats.
If you have both Elemental Scion and Earthborn Adept, your rank in Earth Magic will be doubled for the purposes of this spell.
This spell doesn’t convert base Aura, or Aura bonuses from worn equipment. If you don’t have sufficient Aura, this spell will just convert as much as it can.