Dragon Prophet

Assuming 18 DEX+ +6 Belt
Draconic Sorcerer 10/Dragon Prophet 10
Spheres Arcane Armor

10 AC Base
Level 9 Dragonic Resistance: +2 Natural Armor AC
+5 Mythril Chain Shirt +9 Armor Bonus
+6 Dex Bonus To AC
+5 Amulet Of Natural Armor
Ring Of Deflection  +5 Deflection Bonus
Shield +4 Shield Bonus
Dragon Prophet Prophetic Protection +3 Insight Bonus To AC
Identify Rhythms Scout Talent +6 Dodge Bonus vs Scouted Creatures
Total AC: 50