Here are the decklist I used for legend this month of may

and ofc proof of legend

yes my decks are gold, they have been for a while, get over it

gl to everyone still trying

I am fairly happy with that time, considering i didn't play day 1 (did brm on eu, na, and then went to work lol) and I had work everyday, so i could only play during the evenings.
The most important part for me was to have 2 decks of each class: I never did 2 patron in a row, or 2 control warr in a row. Always one, then the other. You tend to face the same people few times in a row when you climb early, and having them do the wrong mulligan is priceless, especially when you have several cards in common in both: they realize their mistake by turn 4-5 usually.
The warlocks decks were only used on the last day (and zoo on day 2) because of the meta, but warrior was the main class for the whole thing!