All for One

This "event" will take place once a week each week in August 2018. It will last for 60 hours starting with August, 3rd 2018. It will probably be re-rolled frequently throughout the year.

In Short

Farm or buy event essences
Form a team with each Class present in it
Play Scaling Normal Dungeons (Painful, Excruciating, Fatal)
Clear the map and kill the Sentinel
Break the sealed Chest
- There is a sealed chest in the map
- The location is always the same in each map
- The chest is sealed and only one class can break the seal by using Spirit Essences (the chest indicates what class should break it)
- Hope you will get a Rune Fragment
- Hope you will get 4 different rune fragments so you can craft a rune ... eventually
Craft the rune
- Hope you will get rune of your liking. When you are crafting a rune you are getting a random rune. That means you might not get the rune you were looking for (even though they are all useless)
Bang your head in the wall once you realize for what kind of useless reward you had to do all that grinding
Repeat all the previous steps

Daily Reward

All for One Daily Box

Chests

You can break the Chest's Seal only when you defeat the Sentinel.

Seals

Only one class can break the seal at time.
That means if you get Dragonknight's Seal no other class can break the seal. So don't waste time shooting the chest.
You will need to have players of each class in the group and you will all have to have enough Spirit Essences.
Spellweaver Seal

Ranger Seal

Dragonknight Seal

Steam Mechanicus Seal

Essences

Runes

Recipe

Schematic - Group Effect Runes
You can get the recipe as a drop from Nui's Chest OR you can buy it from The Ghastly Gnob for 15 Draken.

Spellweaver Runes

Dragonknight Runes

Ranger Runes

Steam Mechanicus Runes

Crafting

Combine Rune Fragment: Feynya + Rune Fragment: Ronn + Rune Fragment: Tarnjod + Rune Fragment: Wysthta (all drop from Nui's Chest) at the workbench

Runes can be crafted only with the four parts dropping from the chest.
The rune parts are random. You may get it or you may not. Also you may get 5 million same parts and you will never be able to craft a single lesser rune.
When you get 4 parts you can craft a rune on the workbench. Here comes the interesting part :). The outcome is random. You may get a rune that you don't even like (if you have collected all the parts) and never get another lesser rune.

4x Rune parts = 1x random Lesser Rune

The higher tier rune crafting is same as for the other runes:

3x Lesser Rune = 1x Rune
3x Rune = 1x Mighty Rune
3x Mighty Rune = 1x Supreme Rune