Notes & Combos
Handtrap spam format is quite tiring, but Labrynth is still a great deck. With Arias and Transaction Rollback now legal, it's capable of pretty impressive turn 0 plays as well as playing through Ash a lot better.
For the decklist, I was heavily inspired from Dinh Kha Bui's YCS Bologna's decklist: 3 copies each of Arias, Trap Trick, Welcome, Big Welcome and Daruma Karma Cannon to either stop the opponent's plays in their first turn or set up for my own turn. Arias can also summon Arianna, which can search for Cooclock or Chandraglier/Stovie, potentially allowing for a Cooclock combo if I already have the missing piece. Drawing Lovely also doesn't feel as bad now with Arias, as we can get her on the field earlier than usual.
Transaction Rollback is self-explanatory: protects the traps from Ash/Belle, allows double use of Karma Cannon and can potentially help push for more damage. Just an insane card overall, although admittedly it has no synergy with Arias.
I'm not currently playing Absolute King Back Jack because I figured that, with only 4 furniture cards, having 3 copies of Rollback was already enough to pair with those, also there isn't much space left in the deck anyways. I tried Labrynth Set-Up as well, which is theoretically great in Trap Trick lists, but I felt like I was never using it, so I decided to cut it.
For the Extra Deck, the only relevant cards are Chaos Angel and Muckracker. Unchained package is still here even without any Main Deck investment, because they're generic enough that they might come up. They never came up.
Replays
Replays compilation with timestamps: https://www.youtube.com/watch?v=S9wbW4WNzkY
You might see a couple of different cards, as not every match was played when Arias was already out