The Essence of the Unknown Pathfinder Wrath of the Righteous - How to solve the slab puzzle

After the liberation of Kenabres and the Gray Garrison, you will find yourself on a huge map of the world and will be able to travel as a detachment and an army. Not far from the starting point will be the location of the Essence of the Unknown. Go there and find a cave. There is a mystery inside. Search the urns and collect the slabs. Place regular plates on the sides. There are three of them. And double plates must be placed so that they are combined according to the domino principle.

Here is the answer:

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