What does the
Axe Expertise [ddi] extra feature mean by that results in a 1?
Also, when rolling damage for a weapon attack you make with an axe, you can reroll one damage die that results in a 1, but you must use the second result.
If any of your dice look like this, you may pick one of them and reroll it. Do not count the original roll, use whatever you rolled the second time with that die.