Terramancy is the magic of the runic element, earth. 

Effects on Magic Damage: 

Double runic energy for magic attacks done against those of the air element.

Effects on Magic Defense: 

1d8 reduction in to Air and Earth Magic Damage. Impossible Arcana Check for full immunity to Air and Earth Magic. 

Supportive Effects: 

Challenging Endure Check to decrease physical damages by half.

Affinities: 
Stone, Nature
Months: 

Afteryule, Narvanye

Runic Element Tag: