Because the set was announced so early and I was still in the thick of working on it as people learned about it, I had the unique opportunity to hear about what people wanted while we could get it into the set
Because we wanted to show a lot of creatures using technology, we decided we liked the idea of using +1/+1 counters to illustrate that something is enhanced by inventions
The best bet you have are suspended spells since it wont exile those already exiled spells, or casting your commander from the command zone with some floating mana
Cards like Future Sight and The Reality Chip are good ways to keep fueling your paradox machines
Notably all of the drops will be available on the D&D Beyond marketplace as well as the Secret Lair website, and you may also be able to get your hands on them at select local game stores
It pairs well with Springheart Nantuko, which creates token creatures every time a land enters the battlefield