Run your list through our MTG deck analyzer and these are the ratios itll push you toward: Lands 3637
Disa the Restless can make plenty of Tarmogoyfs, but the odds of Grisly Salvage finding any Lhurgoyfs to bring into play with Disa's help are very low indeed
Bound isn't terribly worth it as a one time effect, and Determined is, I don't know, a storm card
Other interested parties have also made bids along the way, but none yet tops Rubios
You can read the full mechanical history and rules interactions on the MTG Wiki if you want the deep lore
For the price of a single new video game, you can own a genuine, more than a quarter century old piece of the hobbys origin story, and thats about as much card history as fifty bucks can buy