gengar ex pokemon card value 104/162 - Temporal Forces - 2 Set Pokémon Trading Card Year Mega Gengar Ex 269 is

Collectors who buy these cases separately know they cost a few dollars each

All of the above work with pretty much any commander, which is another key aspect if you're on a shoestring budget: A manabase you can use in multiple, different decks

Life-Gain - This is an ideal Zombify effect in life gain which is the most registered archetype in the Commander format according to EDHREC.com

Between that and the relatively lower power level of newer preconstructed Commander decks, were unlikely to see the answers we so desperately seek on the horizon

You make a really good point about the standard dorks tending to be better cube fits than the modern and legacy ones