Blaming luck is the fastest way to plateau in any game.
Truer words were never said. Your brain literally just stops working on the problem when you start seeing everything as luck. In standard (pre-wild actually) I used to think I had plateaued in ranked at 15 without grinding and that the rest of getting to legend was "basically grinding" then I told myself gtfo, git gud, and started playing arena, Arena taught me totally different fundamentals for the game, understanding concepts like reach, tempo, when to be the beat down, when the control etc and how they relate to deck building. Taught me when to trade, when to go face, how to read a deck without even knowing the deck, how to count my cards etc. after that I shot up to rank 9 (old rank) and plateaued there for a few months. then I got really interested in building decks again, made the right tweaks to an already good deck to make it better and shot from rank 20-legend in 16 days with only 2 days of play longer then an hour. however the preceding months I had also played every single meta deck to understand it.
My play through rank 2 and 1 was lossless due to how much better my play and deck was then the rest I entered legendary ranked in the 100's, but every newb that has plateaued at the skills they are actually using (as opposed to the ones that they don't even possess) will tell you that "the rest is luck".
Put another way... did you consider not going beast? or getting the 4/4 taunt redirect?
Truer words were never said. Your brain literally just stops working on the problem when you start seeing everything as luck. In standard (pre-wild actually) I used to think I had plateaued in ranked at 15 without grinding and that the rest of getting to legend was "basically grinding" then I told myself gtfo, git gud, and started playing arena, Arena taught me totally different fundamentals for the game, understanding concepts like reach, tempo, when to be the beat down, when the control etc and how they relate to deck building. Taught me when to trade, when to go face, how to read a deck without even knowing the deck, how to count my cards etc. after that I shot up to rank 9 (old rank) and plateaued there for a few months. then I got really interested in building decks again, made the right tweaks to an already good deck to make it better and shot from rank 20-legend in 16 days with only 2 days of play longer then an hour. however the preceding months I had also played every single meta deck to understand it.
My play through rank 2 and 1 was lossless due to how much better my play and deck was then the rest I entered legendary ranked in the 100's, but every newb that has plateaued at the skills they are actually using (as opposed to the ones that they don't even possess) will tell you that "the rest is luck".