Nature's Fury | D4 Druid Key Passive

Nature's Fury is a Druid Key Passive with the following effect (simplified):
Casting an Earth Skill has a 20% chance to trigger a free Storm Skill of the same category. In addition, casting a Storm Skill has a 20% chance to trigger a free Earth Skill of the same category.

Once you select Nature's Fury as your Key Passive, you can't select any other Druid Key Passive. They're considered to be very important parts of your build, so it merits quite a bit of possible discussion.

How best to use Nature's Fury

Basically this segment will be giving you a rundown on the basics on the "WHEN, HOW, and WHY" of the Nature's Fury Key Passive.

Questions we would answer here would be like:
How to use Nature's Fury, as a baseline.
Why you would choose Nature's Fury over other Key Passives.
When would you consider Nature's Fury? As a build-around? An "augmentation"?

Nature's Fury Core Synergies

TBA: When choosing Nature's Fury, are there "absolute godtier" level synergies you essentially NEED to take?

Related Links & Other Information

Still got a lot to do, a lot of data to track, and how best to present it! Post-launch will clarify alot of this for us!

In the meantime, Related Links:

• If you're here, you're probably looking for some info on the Druid Class.
• Related Skill Tree Nodes: Nature's Fury
• Summary of all D4 Build and Character Customization Systems.