Thanatomancy is the magic of the runic element, death. 

Effects on Magic Damage: 

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

Effects on Magic Defense: 

1d8 reduction in to Time and Death Magic Damage. Impossible Arcana Check for full immunity to Time and Death Magic. 

Supportive Effects: 

Immune against poison.

Affinities: 
Death, Decay
Months: 

Varassis, Elasys

Runic Element Tag: