As a game designer, I'm deeply impressed with the elegance and visual impact of their solution
If the number of cards in defending player's hand minus the number of cards in your hand is 0 or less, you won't draw any cards
PRIMO, THE UNBOUND Free to find math for blockers on their own time, Primo here can trample over a large amount of damage if you put the mana into it
Honorable Mention #3 - Forbidden Alchemy One of the keys to the Cthulhu Mythos is "Knowledge That Man Was Not Meant to Know." When you find out or see the reality behind the scenes you are likely to go mad with the truth of it, which is something probably coming from Arthur Machen's earlier classic horror short story The Great God Pan which influenced the Mythos
Rampant Growth, solid, but just be looking for mana ramp
Which Hobbits Should Be Our Commanders