New set from big patch and can only be gotten from metal box >.>
Wild Chaser
-2: 50% tolerance against Fire, Poison and Petrification
-3: 10% chance to reduce incoming damage by 50%
-4: 1st Locked skill +1; ....... +1
-5: 3% Double Attack Chance(just like altera's last effect)
30~50M will be my guess since the ones that are in the demand as of now are Heavy Nasod Armor, Legendary Dragonic Armor and Purified Altresian Armors and their ingredients too cost way too much as of now
edit:
armor lvl 36 of that eh and looks like an alternative to altera set just double the current price of altera armor for rena; average of 2.5M up