Hello there, as you may know. The current cap is 16 and can be easily achieved by following the path the miners dug out. But if you're a merchant like me, this is a simple way to getting to the cap in less than a day (or even less).
In this image, a friend helped...my friend (who is not me cause I don't play AL yet ). level from 1 to 8 in less than 20minutes. Look below to see how it can be done.
1. Add the high level
2. Join group
3. Join the high levels game
4. Use the 50% elix (only 2 platinum)
Make sure to not step into the pile of mobs or you'll sit in one shot.