This will affect some older cards: for example, you can no longer find a Choice Belt with Mew CELs Mysterious Tail Ability
Why not turn Monstrous Rage into Dark Ritual, or use a bunch of equipment to mimic The Reaver Cleaver
Shop TCGplayer The official Bandai deck feature for Green/Yellow Law describes the sequence as: "Prepare by lining up several low-cost Characters, then when the total cost of your Characters reaches 5 or more, activate the leader effect and deploy all the powerful Supernova Characters placed in your Life cards at once." In practice it breaks into distinct phases
There's dozens of ways you can do this in Mono Green, one such way being Concordant Crossroads, Cloudstone Curio, and two mana dorks that tap for more than one green mana, like Priest of Titania and Ilysian Caryatid
Core Set 2020 mythic rares have a higher ceiling than people think you saw what happened to Vivien, Arkbow Ranger last week and the decks namesake card is about to get a lot of press in the new Throne of Eldraine Standard environment