Fusion X Link Fest Gem-Knight

My favourite deck from my favourite character in ARC-V, or maybe even from the whole series.
The plan is simple: Go second and find a way to OTK.
Enemies have a lot of monsters? Burn with Lapis Lazuli.
They only have one monster? Topaz-copied Master Diamond at your service.
They have a weak Defense Position monster? Ruby will do the job.
They have some battle trick or floating effect? Copy Citrine and Swing (more useful than I initially thought).
A lot of backrow? Amethyst will clear them. Using Tearlaments, you can summon another copy for free!
This is my final list, where I got 12 win streaks at the end. Initially, it was chaos, though. Because it's been a while since I last played it. But eventually, it all came back to me.
A big thank you to ガンミィちゃんねる (CZcams) for the inspiration for the list and strategy! They have recently reached Master 1 with Gem-Knight and I recommend you to learn from them as well :)
Timestamps:
0:00 Decklist
1:04 Tri-Brigade (2nd)
3:06 Marincess (2nd)
5:19 Sky Striker (2nd)
7:38 HERO (2nd)
10:04 Sky Striker (1st)
12:08 Vaylantz (2nd)
13:42 Unchained (2nd)
15:41 Dinomorphia (2nd)
16:50 Cyberse (2nd)
17:44 Unchained (2nd)
19:32 Cyberdark (2nd)
21:23 Unchained (2nd)
23:10 Ninja (2nd)
24:40 Sky Striker (2nd)
27:08 Thunder Dragon (2nd)
28:17 Unchained (2nd)
30:09 Salamangreat (2nd)
32:32 Sky Striker (2nd)