You can only use this effect of "Offerings to the Three" once per turn
In your deck design, think, What could totally disrupt my plan? and maybe have some sort of answer available to at least possibly draw
Being able to force your opponent to discard their hands (often triggering life loss via the enchantment Megrim) and giving you more tools to play with, is still quite a strong ability
Yet, the raising of prices does make sense from a business standpoint, especially if scalpers are relying on their products to make good profits
Ultimately, I think the food deck might be more promising without Emry, since its mostly not artifacts that make food, but if there are just a few more good artifact creatures we might be able to see something happen with Steel Overseer and Emry
They're perfect for bringing everyone together,