Brother's War limited is a little bit of a bomby format but also rewards good synergies. The pace of the format wasn't as slow as first thought, but it definitely wasn't as fast that you couldn't power(stone) into your larger more powerful artifact creatures.
There were a lot of mana sinks and artifacts in the set that made powerstones really shine. If the cube ever goes into a direction of being an artifact heavy themed cube then a lot of the powerstone generators would be instant includes.
A lot of the cards on my wishlist weren't as powerful in BRO limited however considering the power-level of cards that these commons had to compete against, its not hard to imagine why.
Before the set drops and we get familiarised with the cards in a limited setting, below are a list of cards I speculate to be good.
Wishlist - Adds:
Ashnod's Intervention
Emergency Weld
Goblin Blast-Runner
Wasteful Harvest
Fallaji Archaeologist
Bitter Reunion
Gixian Infiltrator
Gaea's Gift
Tocasia's Dig site
Rust Goliath
Maybe
Boulderbranch Golem
Dwarven Forge-Chanter
Gixian Skullflayer
Scrapwork Mutt
Scrapwork Rager
Overwhelming Remorse
Mishra's Domination
Penregon Strongbull
Blanchwood Prowler
Prison Sentence
Honorables: