The fact that you get one of the lands in your hand is great for Landfall decks, too, and gives you the option to use it as fodder for cards like Faithless Looting in a pinch
Looking at things from the hero side, the most obvious place to find value is in the cards which directly reference players sharing a team or otherwise co-operating
Delver of Secrets is a mere 1/1 human, but its easy to transform into the 3/2 Insectile Aberration and start attacking on turn 2
You are probably giving some cards away by playing this
Thankfully, you are not required to read every single edition if you want to keep up with things, since they also have searchable rules databases, so you can just input the card you have a question about and expect the computer to do all the hard work of searching for and spitting out the answers
And between Dominaria and War of the Spark, we have a massive number of legendary things right now