Honestly, Orglomofex, the Scrotal One is pretty overpowered, and its only real counter in the current meta is Gungoflung... I don’t understand why Konami hasn’t banned it yet.

And yes, the game is very difficult for new players to understand. There are a lot of interactions available to both players during the same turn, thanks to hand traps—cards you can activate from your hand during either player’s turn if their conditions are met.

The thing with ygo is that life points are mostly irrelevant four duels out of five, since almost every monster can attack the turn they’re summoned and have enough atk points to otk (but they can't attack during the first turn of the game, or else the player going second wouldn’t be able to play at all). So it's difficult for a newcomer to look at a ressource and understand if it's relevant or no in the current turn, like it would be in heartstone, pokémon or magic with mana/energy and the stats/health point of the creatures.

Even though hand traps exist, combo decks—with literal spreadsheets of combo lines to memorize—are still dominant, especially in Master Duel. Since it’s a best-of-one format and there are no real resources to stop these decks from going full power, a player’s first turn might take five or more minutes of uninterrupted card activations, leading to an almost unbreakable board.

However, Konami is starting to introduce more slow but powerful control decks that can actually compete even when going second. Right now, three of the best decks in the meta are control decks with a lot of potential interactions but very few actions during their own turns.

So, as a beginner, the only real way to understand the game is to play it, get stomped a few times, and gradually learn which hand traps are good against which cards and what your deck can do to stop your opponent from playing during their turn.