Prestige

Under Prestige you have two different options.

You can start using Ascend after reaching Weapon Tier 25. It's a must to Ascend as it makes you start over and you will be able to reach a higher *Weapon Tier* after each Ascend. Note that Ascend will increase it's next requirement by 5 Weapon Tier each time you do it.
 * Ascend

Transcend starts at Weapon Tier 75, when you use Transcend all your Ascend levels will reset to 0 and you will start completely from the beginning. You will gain an amount of Soul Points to spend on passive upgrades depending on the *Weapon Tier* you are when you Transcend.
 * Transcend