"Rare" (and non-rare) Item Tier Level Upgrading!!
(needs a better name?!?)

Guardian characters can now upgrade many items to a higher tier with a quick purchase using Gold or Z-Tokens.  The upgrade cost is basically the shop price difference between the old and new tier.

This system works with AdventureQuest and WarpForce. You can use it to swap between no-drop Warp Guardian gear.

Check out this Forum Post for more info and detailed instructions.