Damn and Winds of Abandon do exactly that, and its the reason I find myself playing them in so many lists
The current system, while workable, creates artificial trade barriers by giving incentive to people to consistently trade with the same bots they already have credits on instead of searching for the best price for each individual card
Even if you arent going infinite, most kindred decks can still make great use of this mana
Great Unclean One has also won me games (and for some reason is now the most expensive card in the deck tied with Lord Skitter, Sewer King?) Ogre Slumlord has been pretty good, especially since I can start pinging on opponent turns if any of their nontokens die
It is very difficult for me to pick a favorite piece because every artist gave us great work
This turn, that player can't cast spells or activate abilities and plays with their hand revealed