2X2, 40K, DMU, DMC symbols
2X2: Double Masters 2022
40K (zero): Warhammer 40,000
DMU: Dominaria United
DMC: Dominaria United Commander

Our traces:

https://c2.scryfall.com/file/scryfall-symbols/sets/2x2.svg
https://c2.scryfall.com/file/scryfall-symbols/sets/40k.svg
https://c2.scryfall.com/file/scryfall-symbols/sets/dmu.svg
https://c2.scryfall.com/file/scryfall-symbols/sets/dmc.svg

Images from the presentation:

![2x2](https://user-images.githubusercontent.com/769083/168409232-17bd675f-860b-4d0b-b817-bb2f3bb2db4e.png)
![40k](https://user-images.githubusercontent.com/769083/168409233-0b54b16c-132d-4c0d-9b19-9b822d212f3d.png)
![unknown-1](https://user-images.githubusercontent.com/769083/168409242-5062bf01-6e4c-4228-b798-400f2dc4fd51.png)
![unknown-2](https://user-images.githubusercontent.com/769083/168409243-c67cab95-015a-4e75-b050-a0b9980d0e42.png)

