The land base is another easy way to reduce the cost of Commander decks right now, as so many lands have steadily risen in price over the last few years that if you want to run mostly non-basics, it's going to take up a huge portion of your budget.
Since they dont have to be kept this way forever, Duskana can easily just carry you through the mid-game before the flipping antics begin
cards like Battle Screech, Lingering Souls, and Secure the Wastes generate enough tokens for an activation and then some
A Pokmon card is valuable based on several factors, including its age, eligibility, what set it was released in, the physical quality or condition of the card, the rarity and desirability, and the Pokmon/character/item that is featured on the card
Scheming Fence is a pretty important card considering it can turn off Mana Crypt and other early game mana producers