Price Check on 2 Gold Axes

Chaos Axe of Warding (max damage) req 8 axe mastery
+15% dmg while health < 50%
+6 armor vs. elemental

Ebon Cleaver of Shelter (max damage) req 8 axe mastery
+14% dmg while health > 50%
+6 armor vs physical

1) Merchant
2) 20k? Not sure