It can be socketed into Weapons and Shields. It can only be inserted into Inferno or Meta rune slots.
Tianarx is one of the Runes available in Lords of the Fallen (LotF). Tianarx is a rune that increases fire damage for weapons and enhances resistance to fire damage for shields. It is associated with the Rhogar and their skilled Conflagrant Seers..
Amongse the Rhogar, only the most skilled of Conflagrant Seers are capable of manupulating runes.
Lords of the Fallen Items