I wouldnt tunnel in on Grixis too early, but if you are drafting blue/red and havent seen any good payoffs, consider picking black removal and going the Grixis direction
Ravager Wurm If you've noticed a lack of actual, bona fide Gruul cards so far, that's not an accident
The trade for this is that when he does quest for that impressive amount of lore, you can ready everything in your inkwell, letting you take, essentially, two rounds in one go
A graveyard-centric deck might not want to rely on this as its primary way to access cards
Its meant to be a political commander, but it ends up being more of an oops-I-outvalued-my-opponents rogue commander instead
But one in particular I will always remember and truly holds the title for the most incredible