Even commodities with clear levels of use-value demand like gasoline, eggs, or palladium fluctuate in price for similar reasons, a combination of demand, investment speculation, and, if not always nostalgia, at least some form of emotional connection to a product that seems stronger than its value in use or consumption
Aragorn and Arwen, Wed is fairly effective in the right build, either in a Limited or Commander deck, since its colors and effects are flexible and don't rely on Tales of Middle-earth effects to truly shine
With the exception of Drytron, each of the decks mentioned above consists of monsters of varying attributes, making Gozen Match a similarly effective counter to these decks
On top of that, there are other protections installed
I can force a situation where you need to use a Stone with under half that mana
Sidar has a very powerful mechanic in eminence (remember Edgar Markov?), so you only need to attack with knights to loot
