So, I've been trying to get this Royal Inspiration deck to work for months now and feel like I've finally made a couple of key changes that have helped out. I used to have even more engines than what it has now, but dropped them in favor of some big bodies via Lady of the Lake (yes you read that right) and Frenzied D'ao. Deck guide is in the link:
As for Stockpile, I have played this less so it's still in the works, but obviously really strong when it goes off. There's really no Charge/Order units above 9 provisions so it's a natural fit with Ciri: Nova.
Both decks play similarly. They have strong Round 1s due to engine overload, free use of leader ability, ability to play some golds without feeling like you're overcommitting (after all, most of your deck is 7-8 provision cards) and free points from Roach + Knickers. Overall, it's around 10 free points from leader ability, Knickers, and Roach, allowing you to either lock down round 1, have Ciri: Nova carry over into Round 2 creating card advantage, or putting your opponent in an awkward position of trying to answer Ciri while you're ahead.
Considering the decks are capped at 9 provisions, they have insane engine potential in Round 3. Nathaniel Pastodi converting 1 buff into 2 bleed in Royal Inspiration is pretty insane when next to Drummer + Anna + leader, and Hubert/Priscila/Shani can overload most other decks when left unchecked. Hidden behind Donimir, it can be real tough for your opponents to outpoint you without a lot of interaction.
Enjoy! Let me know if you see any room for improvement as I plan to continue to flesh these out and make them even better.