I have one primary concern for this new digital-only format, and its my overall concern for anything WotC does for Magic: will Alchemy create enjoyable gameplay experiences
This card is a great way to essentially store any unspent mana turn to turn, by tapping any unused lands for Treasure
Multiple magnets ensure the lid stays shut
See rule 103.4
It was after my second game with Yarok, where I assembled infinite mana in barely any time with Deadeye Navigator/Peregrine Drake and cast Villainous Wealth for X = 1,000,000, that my friend observed: Wow, its almost like getting two triggers for every enters-the-battlefield effect is broken. And they were right
While plenty of mechanics let you cast spells from exile, like cascade and discover, exiling spells to cast lateror impulse drawshas become reds premier source of card advantage