Here's how I cleared my Spiral Abyss Floor 12 with Skirk Freeze and Arlecchino Citlali Melt/Vaporize teams for the 1st and 2nd half respectively!
And yes, I managed to get all 9/36 stars! :D

P.S. my account is FULLY F2P :V

1st Half: C0 Furina, C0 Skirk R1, C0 Escoffier, C1 Mona
2nd Half: C6 Xingqiu, C1 Arlecchino R1, C0 Citlali R1, C6 Bennett

Hope you liked this Abyss run and found it entertaining/helpful if you're trying it yourself :)
Make sure to comment if you have any questions or if you wanna see more Spiral Abyss gameplay! I reply to EVERY COMMENT that's not spam loL

I also stream regularly at around 11:30PM IST, so tune in if you have any questions or are simply interested in having a chat while watching some chill Gameplay :)

Do Like and Share this video if you enjoyed it!
Thanks for Watching!

S U B S C R I B E F O R M O R E E P I C C O N T E N T !
#TRKDH117 #GenshinImpact #SpiralAbyss #GenshinGuide #Skirk #Arlecchino #Citlali #Furina #NodKrai #Genshin

Timestamps:
0:10 - Floor 12 1st Chamber 1st Half
1:42 - Floor 12 1st Chamber 2nd Half
2:49 - Floor 12 2nd Chamber 1st Half
3:43 - Floor 12 2nd Chamber 2nd Half
4:29 - Floor 12 3rd Chamber 1st Half
5:31 - Floor 12 3rd Chamber 2nd Half
6:35 - Character Builds