RoZ or FGoDL

For fire I have DMC and either Rune of Zeth or Foul Gift.

Pretty sure the Int from foul gift is better but Zeth has an on use int and passive crit so just wasnt sure
Mastery is useless as a fire mage compared with crit and haste so Rune of Zeth
Anyone who plays fire/has done reg/heoic DS please
Mastery is not useless, it's just less desirable.

Foul gift is still better though.
Thought so thanks Noomage