[2020] How common is it to run a dungeon 8 times, open 8 chest and get zero A pieces?

The secret to this game is that you'll hardly ever get the drops you want. The standard for most MMOs is if you want a specific piece of gear, you run the dungeon that has it until it drops. In Bless Unleashed, that way lies frustration. But it will have dropped for someone else who doesn't need it. Just try to get any A-gear you can sell, and use those seeds to buy the drops you actually want. Devs wanted to make sure we keep the economy flowing