Logs: http://taehyung.dorothea.us/victoryroad.php?logs
Honestly, idk if you're also allowed to chain candy for masteries, because I did that with a few here. Feel free to uh, ignore them if this isn't allowed.
These decks will be mastered with the adventcoupon-x2masteryrewards coupons! I didn't realize that these were 2 uses per coupon, I didn't feel like really editing all of this again to accommodate that so I have 5 more uses left with the coupons I have left!
Deck(s) Mastered: cosmog, darkrai, froakie, mewtwo, skiddo
Choice Cards: feebas17, feebas19, feebas20, azelf17, azelf18, azelf19, azelf20, milotic16, milotic17, milotic20, riolu03, riolu04, riolu05, riolu06, riolu07, riolu08, riolu09, riolu10, riolu11, riolu12
Choice Candies: water x20



Regular deck masteries!
Deck(s) Mastered: blastoise, charmeleon, ivysaur, jirachi
Candies Used: blastoise - water candy x50, charmeleon - fire candy x25, ivysaur - grass candy x25
Choice Cards: riolu13, riolu14, riolu15, riolu16, riolu17, riolu18, riolu19, riolu20
Choice Candies: water x8
To note for convenience, I had 47 water candy starting out, and earned 20 more from the first section of masteries for a total of 67. I then used 50 for the blastoise mastery, which came out to 17. Add the additional 8 water candies earned from the second section, and I now have 25 water candy, which I will use for my dewott mastery below.
Chains!
Deck(s) Mastered: dewott, feebas, riolu
Candies Used: dewott - water candy x25
Choice Cards: celebi03, celebi04, celebi05, celebi06, celebi08, celebi09
Choice Candies: water x6
Collecting Next: celebi
Thanks a lot!