Variety is the spice If you're unfamiliar, Magic: The Gathering Arena is a free app that works on practically everything with a screen phones, tablets, and anything with access to Steam or Epic
As for depth and difficulty both a 5, it wasn't that long of a game or that hard, true it may get a little challenging if you can't seem to draw the right card at the right time (like energies) but it really is not hard when it comes to overall game play and if you play a few times you will easily overcome most if not all of your opponents
Crop Rotation Crop Rotation is one of the best ways to tutor for a specific land you need, and that has some implications
As a note on those Honorable Mentions, with 63 different pieces in the global prints of these cards and 63 variants in Japanese, it was quite difficult to find any of the cards that could stack up against the Japanese variants as those are so wildly different
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