Before we start, here's how we picked the cards in this article
Whats more, this Leo doesnt have much in the way of costs associated with using this ability
There are about a million 2/1s for two mana with some sort of upside that are playable, not just in Standard but in Modern as well, which means Naban, Dean of Iterationwhile restrictive in another way (only working with Wizards)is much easier to build around than Panharmonicon
Now, your opponent can do the same, but, if since youre an Emerald deck that can run discard cards, you could bleed them out of resources and potentially leave mediocre plays in their hand, that dont stand a chance against the Character youve developed
In Magic, on the other hand, zero is so much more than nothing