I don't see why this game does not depend on luck. If not, you can reach KOG more easily with any decks posted here since they are what people used to reach KOG. Luck doesn't count only on your side. If your opponents have optimum hand or good draw, you are unlucky as well.
GB, CA, Burn, etc. are tier 1? Brick a lot or have a bad draw and don't say that is not because of luck.
You know what, luck does play a huge factor. I used six sams and had a win streak from plat 1 to legend, getting the perfect hand in those 3 hours. And before that I got to plat 4 the same way. Waited a for a day, then got the shittest hand possibly and getting a lose streak. I literally pulled all spells or all monsters with no balance at all.