Quote Originally Posted by Futumsh View Post
How it works currently:

Mobs can have multiple loot tables. Rerolls happen independently within each loot table.

If you get an item from a loot table, reroll behavior is different based on the rarity of the item from your initial roll.

common, rare, epic: If there are items of the next better rarity in the table, you get one of those.
legendary, mythic, set, spirit, vanity: Roll again on all items in the loot table. If the resulting item is a better rarity, you get that instead.
arcane, heroic: no reroll, you get the initial item.
So if you get a mythic you can reroll and get arcane/heroic?