So, I think I've fixed the Team Mirror(Thank you Solsund!), and possibly the Shadow Mirror. Also in this new version is the Hidden Temple, which is generated the first time you defeat Golem. Behind where Golem is defeated, an 11x11 area of backwall will be destroyed(dropping the wall items) and replaced with Blue Lihzahrd Brick Wall with a stone platform at the bottom. Stand in front of these walls for 2 seconds and you will be teleported to the Hidden Temple, which contains two chests and the Solarium Shrine. Gather a Lihzahrd Power Cell and an Earth Stone to create a Solarium Rod(at a Xeradon Anvil), which you use on said shrine to generate Solarium Ore in your world. You won't be able to mine the Blue Lihzahrd Brick until you get an Acceleration Drax.
LINK:
https://www.dropbox.com/s/chvv2rmmy2pihcm/Exxo Avalon v5.2.zip?dl=0
Credits for the Hell Armored Vanity item sprites go to SzGamer227. Credits for the new sound(Item_58) go to Blinn.
Other fixes:
-Phasecleavers now have a type of damage
-Anger Talisman/Ancient Armor no longer give double the ranged damage it states on the tooltip
-GAK now gives minion damage boost and states that spelunker and hunter potion effects are active("Shows ores/mobs")