Item Tiers

Overview
Miner's Haven has many tiers, used to categorize items in the game, many, but not all tiers, indicate items that are obtained a specific way. While the shop contains many items, most items in Miner's Haven are not found in the shop. Please note that the tier doesn't completely determine the quality of the item; effects also determine it. Here are some things terms to look at before reading the table:
 * Items with tiers marked Reborn Proof remain in the player's inventory after performing Rebirth, otherwise, the items get deleted from the player's inventory (some tiers have exceptions).
 * Items with tiers marked E remain in the player's inventory after performing The Ultimate Sacrifice, otherwise, the items get deleted from the player's inventory (some tiers have exceptions).
 * Tiers marked Inactive have once existed in Miner's Haven but are now discontinued, all of the items that once had the tier have received a new tier.
 * Tiers marked Active currently exist in Miner's Haven with items that have the tier.