Its expensive, but in green, with Ramp, its not rare to be able to cast it
You could use it to bounce back one of your damaged Pokemon before it gets knocked out or as a means to bring in a Benched Pokemon without switching out
Perhaps that's why it was initially valued so low
Emergent Sequence is similar but exposes your land to removal, and Edge of Autumn straight up stops working after a certain point, though it has a nice cycling buyout
You can definitely get lucky, but you can also buy hundreds of packs and still not find a single rare card. With new packs costing around $10 to $15, thats a big risk, meaning you can lose a lot more money than you could gain
Notably, theres not a single card of value in the mana base