Rise of the Floodborn is already shaking things up - though the current frontrunner appears to be an Amber/Emerald Discard deck, so any deck playing Hiram Flaversham will have some stiff competition
A sets print run, while not being precisely calculable, naturally ties in with a sets rarity a couple different ways
That set taught us that three-color factions need to have a focus
The First Sliver and Sisay, Weatherlight Captain are assuredly more powerful cards, but they're fairly interchangable with other five-color legends in their respective archetypes
Wight of the Reliquary Knight of the Reliquarys morbid counterpart sacrifices creatures instead of sacrificing lands, which is honestly way better with all the same potential upsides
Sure, the deck has weaknesses: cheap creature removal cards like Go For The Throat, bad opening hands, or simply just not getting enough land