A silent MVP for me was Into the Flood Maw, with so many players on Auras and Prowess, the one mana bounce lines up well to disrupt Tricks or just bounce a suited-up creature
Commenters responded that yes, Defense of the Heart does the Tooth and Nail thing for five less mana
That there exists an even more expensive, even more packed, and even more financially questionable purchase out there
Whenever this creature enters or attacks, exile up to one target card from a graveyard
Ideas such as lowering the power level of the cube, breaking singleton, and how to design different archetypes
I think its a really good idea to give players access to the effects of these powerful Reserved List cards, only they have to work a lot harder to make them work in most cases