Individual Card Rewards (ICRs): If you receive a Rare/Mythic Rare ICR you already have four copies of, the card will be replaced with Gems: 20 Gems for Rares, 40 Gems for Mythic Rares
Sure, these spells get the job donebut at what price repetitiveness
I ranked each MTG card by power, tribal synergy, and performance across different pod levels
For example, if you control Johann, Apprentice Sorcerer ("Once each turn, you may cast an instant or sorcery spell from the top of your library") and Promise of Aclazotz is on top of your library, you can cast Foul Rebirth, but not Promise of Aclazotz
But there's more in store if you dare
The chances of an opponent having three or more creatures on the field is pretty high, especially with all the token commanders running around these days, making Defense of the Heart a delayed but powerful creature tutor