Put another way, this is the cost of a full set in foil: That downward trend is usually present in foil and nonfoil, but Guilds of Ravnica keeps showing us new decks, which causes spikes and the overall value to go up
If you need redundancy in your lands-matter deck, you get a new toy, but if were being fair, you get a new toy with every new release, so were not that happy for you
This is not especially hard to do in any five-color deck, but its even easier if youre also playing Leyline of the Guildpact, which you probably should be doing in a five-color deck anyway (unless its Commander, where it is very banned)
1 Armix, Filigree Thrasher
It can fuel itself with life, and its certainly more than playable
The War of the Spark Mythic Edition box also sold out in a hurry, with many scalpers flipping boxes for nearly double what they paid for them