I was so bad at this and getting owned so swiftly that it was actually starting to affect my mood. I can't win at Yu-Gi-Oh. Can't even get a single win. No matter how hard I try or study or practice my opponent has drawn every card necessary to summon 3 powerful Fuck You monsters to the field in a single turn. I don't understand. The training mode doesn't even come close to preparing me for this kind of Getting Owned.

I work a shitty job, am in enormous debt, I can't afford new tires or a new battery for my car, nothing works out in my favor, and I can't win at Yu-Gi-Oh. I remember when the Cleveland Browns didn't win a single game all year. I wonder how the QB, Deshone Kizer, felt during that stretch. You practice, you study, you do everything possible and yet a single win constantly eludes you. That was on a pretty grand stage, in front of millions. My torment is just in my bedroom while I watch Colorado Rockies baseball, hoping their perpetual losing and inability to play baseball with even the slightest bit of competency will give me perspective on how small my inability to win a Children's Card Game is. But it doesn't. I look at the Colorado Rockies and all I see is a mirror, it's like looking at the devil himself, mocking me for my near-constant bumbling and giving me a microcosm of my various financial woes in the form of a Blue-Eyes Ultimate Dragon being summoned to the field on the second turn just to own me.

If I were younger and still had dreams and aspirations I would probably suffer through the near constant losing just to get a glimpse at what winning a game of Yu-Gi-Oh might look like, but this shit is actually bumming me out. At least when I watch the Shitty Ass Fucking Worthless Colorado Rockies, we are divided by a screen and I am not Nolan Jones letting an easy fly-ball pop out of my glove. Actually BEING that hapless loser is too much for me to bear.

Still highly recommended as it is NOT League of Legends, though.

Unfortunately, this is probably the best yugioh sim ever made. Great accessibility, easy to pick up and fun to mess around in. However, this all comes at the cost of the gacha system - extremely hard to get cards you need consistently and can be hard to build multiple decks you want to use for this reason. The crafting system is excellent but you'll typically find yourself lacking SR and UR points pretty frequently. I've found it's best to plan around building a specific deck you'd like to play with for a good period (espc if you are F2P) so you have some consistency.
That being said, this game is also surprisingly free to play friendly as long as you're not itching to make multiple meta decks. While i can sympathize with new/returning players logging on, running into kashtira/vanquish soul/purrely, etc. getting chained into oblivion and getting frustrated with how much the game has changed, this remains the best way to experience a yugioh sim and i appreciate how it's let people (including myself) reignite their interest in the series.
As improvements, I would like to see the game's card base updated more frequently (as many others have brought up) as we're missing a lot of recent staples, and would like gems to be more frequent, which would fix some of the issues with the gacha system.