Though it's got a pretty steep cost at two of each color of mana, Progenitus can be really annoying to get rid of for opponents
With a cost of four ink, you can have this amethyst Sisu with three strength and willpower
Cut: Goldspan Dragon Add: Ashling Rekindled / Rimebound This card's getting cut for the same reason as Prismari - there were only a couple of cards that made treasure in the precon, so we can switch to more efficient ramp which isn't relying on treasure synergies
Importantly, all of them stand reasonably well on their own and arent dead cards outside of their primary archetypes
The floor on these in a deck triggering multiple upkeeps is still very high, especially when youre playing one, become the monarch, and then get your combat damage trigger from Obeka
Valakut Exploration can be an excellent way to win the game