I play Nicol Bolas, The Ravager as my commander in historic brawl, here's my deck list:
I could spend a couple of wild cards and get the R/U Zendikar lands, but what
I've got right now kind of works just fine. The way this deck wins is mostly
through an overwhelming board presence where I stop any and all attempts from
my opponent to regain control.
Secret Tech: I love throwing Spark Double in the Graveyard as a little bonus
for when I manage to flip Bolas, because the only thing better than having one
Nicol Bolas, is having two. The thing about Bolas too is, even if you cast it
and it's countered, you're still getting value in the form of removing
interaction your opponent could have used for something more impactful, bonus
points if they let Bolas resolve and they burn a kill spell on him and still
have to discard. The other thing I love doing is casting Sublime Epiphany,
countering my opponents spells, bouncing a permanent, and drawing a card, only
to flash in a gearhulk and do it twice. That's the peak of shenanigans.