Its quite common to see a wheel effect in most Standard set releases, and there are so many of these effects in Magic now that you can build entire wheel decks for Commander
Read More: The 10 Best Vampires In Commander Sorin the Mirthless It cant be a return to Innistrad without Sorin, and Sorin the Mirthless offers plenty for Control and Midrange strategies in Standard
Start with the amount of damage being dealt to the creature and determine what is "lethal." This is usually the creature's toughness minus the amount of damage that it already has marked on it, but ignoring any replacement or prevention effects that will modify this damage
Another way would be to include example decks from competitions and current metagame, such that the system can learn from these and build decks that are more competitive, or focus on beating existing strategies
Like the title suggests, Tabletop Simulator doesnt have a game engine, per se
It's messy