So either it is a 3 card combo or a super narrow poor mans Natural Order
You then follow up by casting Lightning Bolt targeting the battle, which resolves and removes the last three defense counters from it
Time Sieve needs to be on the battlefield first, and when you begin your upkeep with Thopter Assembly as the only thopter on the battlefield, it will create five 1/1 tokens, which you will use as sacrifices to your Time Sieve
This is obviously pretty hard to set up in Constructed decks, where you're limited to four copies per card, and it's even more useless in singleton formats like Commander with a few obvious exceptions
The main draw to this product is that you know what six cards you are getting with the rest of the additions largely being a bonus
Most fans dont want to see his work or any other magic card that has the same undertones