Each deck will include 20 exclusive cards , as well as a Collector's booster sample pack, which includes two of the cards you can find in a regular Tales of Middle-earth Collector's booster (bar the one-off The One Ring)
This clever limitation forces players to use his first swing to clear out low-to-mid-cost threats, before utilizing his second, re-stood attack to strike directly at the opponent's Leader or a massive 8-cost-plus boss character
I am not fully up to date on the market for these cards so someone else may be able to help, but Id say if you wanted to sell the collection as is, assuming conditions are mixed, you may make $250 or so
Most show up once in Standard, perhaps to be seen again in less restrictive sets like Commander, Battlebond, and Modern Horizons
You just have to find a way to get at least two lands into your graveyard