Amethyst/Ruby can be useful for control decks focused on maintaining sway over the board, while a good Emerald/Steel build tends to angle for weakening an opponent by depleting their resources through discard abilities
Oh, and it also functions as removal, right
That said, while the floor on this card is not that bad, it is a lot worse than when you can convince the table of your plan
The more lands you play, the more cards this artifact mills
Triumph of Saint Katherine is much flashier than Zephyrim, though I could see Zephyrim showing up in some Cubes as well
Daggermaw Megalodon has islandcycling, so it fits in here, and even Jaws can slot in since Blood tokens both discard and draw cards