The playstyle of Grist usually revolves around shoveling your deck into your graveyard then dealing a massive amount of damage to your opponent directly
The other option is to take advantage of the direct damage, which is good in its own right to either finish off a damaged character or get them within range to be banished but also works with the likes of cards that benefit from being damaged - such as Scroop, Backstabber - that benefit from healing damage, like Rapunzel, Gifted Artist, or from damage being dealt: like Beast, Relentless.
Recovery tools: Recursion, backup engines, or redundancy
In the case of The Brothers War, these cards will be three commons and three uncommons
Updates include: With this list I REMOVED cards would only be good in cEDH such as Mental Misstep and several counterspells ADDED a few bombs like Conspiracy Unraveler and Sea Gate Restoration for fun