15 Culling Ritual Culling Ritual won't get rid of the biggest, most game-threatening pieces, as it can only destroy permanents with mana value two or less
Elrond, Lord of Rivendell Marcy: I don't know if I love Elrond as a commander, as I think he works better as a piece in a Galadriel / Arwen scry Elf style deck, but even without being in an Elf themed deck, Elrond is a pretty solid card that just produces good value
If theres any cards I missed, please let me know in the comments
But its also cool as a source of constant damage
8 Blaster, Combat DJ // Blaster, Morale Booster This Gruul Autobot acts as a sort of lord for artifact creatures, giving them modular 1 so they enter the battlefield with a +1/+1, and when they die you can move that counter to another artifact creature
Aaron chose a one-shot (which ended up in the set lowered in cost and renamed Tome Scour) while Devin chose a repeatable creature