pokemon slugma card TCG #43/214 Lost Thunder Common Pokemon Neo Destiny Unlimited Type Slugma (Space-Time Smackdown #25/208, 1-Diamond)

Yes, you can tap a treasure without sacrificing it

Since these lands will be played in any mono-colored deck and even two-color decks depending on the deck, I can see always needing them

As we often say in Magic , your life total is a resource and ending a game on next to zero life is the same as winning it at 100 but I do believe that casual Commander players are concentrating on the transactional nature of life totals in predominantly one direction

Sure, children going into the store will be happy to spend their pocket change for a chance at a Charizard V, but selling cards at scale requires a lot of knowledge and ability to pivot