You can use Kanai's Cube to Extract Legendary Power：Gain 200% increased damage to a single element for 4 seconds. This effect rotates through the elements available to your class in the following order: Arcane, Cold, Fire, Holy, Lightning, Physical, Poison.

1.You need to provide your account.
2.After get Convention of Elements, we can help extract its' Legendary Power successfully by using Kanai's Cube.
3.ETA:1-2 days.