Silk Opener
Although this particular run didn't start with Silk, it's a great play line to keep in mind if you do start with it as a Day 1 item.
The Claw (Your Damage Deliver System)
Cocount Crab is a level 2 PvE encounter that has the potential to drop Crusher Claw. You can also get it from Curio!
This Weapon is particularly good for Pygmalien since he has a ton of options to help him build up massive Shields.
With the Crusher Claw (or Spiky Shield), you can turn your accumulated Shields into equal Damage that can often one-shot your enemies.
So once you have either damage delivery system, you just have to build up your Shield generation engine and find ways to swing with it faster since it starts off pretty slow.
You can also play the Crab archetype with Vanessa - although Shield stacking is trickier, using the Shipwreck can give your Claw 3x Multicast to make up the difference due to its Aquatic tag.
Property Shield Generation Engine
Space Scraper
With so many expensive Properties at Pygmalien's disposal, the Spacescraper is a reliable option to build your Shield generation engine around.
Once you find it, it's just a matter of finding ways to increase its value and making it cast faster.
Note that Spacescraper now has a base cooldown of 6 seconds post-nerf, but you can find ways to speed up its casting time.
Balcony
The Balcony is a key component of this build as it gives Spacescraper a massive spike in value while cutting down its Cooldown by a significant amount. Don't forget to position it properly!
Stained Glass Window
Stained Glass window is another Property that fulfils both things Spacescraper is looking for, increased value + Cooldown reduction.
Once you have it, remember to keep your board at 4 items (you'll have a Small slot open) and to do what you can to win your fights to activate its first effect.
Soul of The District Variant (PvE Chase Item)
If you want to take the Claw to the next level, try to take on the Awakened District PvE encounter for the chance of getting the Soul of the District Item.
This gives you another spike of Shield generation along with another Damage delivery system that you can use alongside your Claw (there might be cases where you can use it to replace the Claw as well).
Temporary Shelter Variant (PvE Chase Item)
Another PvE chase item you can look for is the Temporary Shelter, which drops from the Tent City Mayor PvE encounter.
This offers another reliable Shield stacking option that you can easily proc with Small items, essentially taking the slot of the Silk but with Property upside.
