Another factor contributing to legendary Pokmon cards investment potential is the franchises continued popularity
His finest work so far was when he exterminated an entire survivor group, one at a time, and placed the balloon-head of each previous victim in a choice location where the dwindling survivor group would be sure to stumble upon it, thus heightening the survivors' anticipation of their own upcoming deaths
These are another long dormant card type making a long awaited return
All else equal, MDFCs, cards with Kicker, Charms, cyclers, and the like will be valued higher than cards with less flexibility
The meta will become relatively stable heading into our next set, Shrouded Fable, which only has a few playable cards due to it being a mini-set