Whenever the monarch casts an instant or sorcery spell, that spell gains cascade
Barbarian Ring is a red land like Ramunap Ruins, in which you can sacrifice to deal damage to other players
Well, cards with benefits for sacrificing are a great addition, so add something like Rakdos staple, Mayhem Devil to the mix
Many unadvised players wont have the resources available or even the knowledge to do this, and theyll think that theyre getting the best deal ever
Usually opponents tend to concede from this point, but if they play it out just have fun spewing answers for literally everything
Gross Jim Davis wrote an article in early 2018 touting the wisdom of cutting the dual lands, focusing on a basic-heavy manabase, destroying opponents with Back to Basics, and playing with a more aggressive plan that controls the early turns then crushes the opponent quickly with Monastery Mentor as soon as there was some breathing room to make the move