The game checks through a list of these rules any time a player is about to get priority, and uses state-based actions to move cards around and otherwise ensure those rules are enforced correctly
It's a small investment in resources with a big pay off if not dealt with
Each March of the Machine Deluxe Commander Kit contains the following: 1 March of the Machine Commander deck 1 Bloomburrow Play Booster 1 March of the Machine Set Booster 1 Commander Masters Set Booster 2 Traditional foil promo cards 1 Jace, Memory Adept with the promotional expansion symbol 1 Ajani, Mentor of Heroes with the promotional expansion symbol For more information on the contents of the March of the Machine Commander decks, check out the decklists right here.
It is rarely worse than Merfolk Looter and generally a good amount better
Speaking of Ben Stark, if you are really serious about getting better about limited, he has a comprehensive course on the topic at Spikes Academy
8: Put three +1/+1 counters on each creature you control