The set boosters in Midnight Hunt will include eight 'Commander-focused' cards, alongside the usual batch of main set picks
This means you can run all the allies you want alongside her, regardless of color
Slaughter is a perfect card to pop in the deck too it not only delivers some really targeted removal but also triggers Yshtolas damage-dealing ability thanks to its mana-cost and allows you to draw a card when you decide to buy it back for 4 life
Then, any time one or more cards would leave your graveyard, you get to make a 1/1 Insect token, giving it +1/+1 counters equal to the greatest mana value from among the cards that were exiled, making it a powerful addition to any graveyard-based deck
Competitive Atraxa, Grand Unifier decks will also use similar combos to secure a win with Thassas Oracle
His deck limitation is just that you cant use cards with multiple same-symboled mana