You can also run it fairly, as a commander that provides both a mana advantage and card advantage since it effectively copies your instants and sorceries and gives you a discount
What happens if I control two Earl of Squirrels
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
Post-board games tend to be more attritional and go longer, so you dont want to be stuck with too much fast mana when you dont plan to deploy your combo that quickly anyway
Plus, you can use this on your own creature so you can kind of make it hide behind your tokens, which makes your opponent have to think twice about attacks
Orzhov control decks revel in this fact, controlling the flow of a game by prohibiting your opponents from controlling their key permanents and win conditions through a blend of targeted removal and board wipes