Interaction and card selection are the best things to pick up when you cant focus on any of the three main tenets of the deck
Being a Maro-Sorcerer (well, technically Demon Spirit), it can get buffed up by Necropotence in order to be a big sweeper
Sometimes its better to take less profit than holding and taking a loss, especially if you have cash flow concerns
The deck runs Wano Country characters from OP-16 and older sets, replaying them from the trash with Rush via the leader ability
The Equipment can also be unattached at any point to deal damage to multiple targets, allowing you to always have a source of removal so long as you have three mana to spend
With these extra abilities, you could name Rebel and then use Lin Sivvi, Defiant Hero to search up any Creature in your deck and put any Creature card from your graveyard onto the bottom of your library