It can destroy any permanent (even lands) at instant speed, and the drawback certainly is something that Green players can handle
If you need any assistants on understanding the decks that are shown or need help creating a different deck, do not hesitate to contact me in Discord (soup8#8320)
For instance, a character might generate one example token every turn theyre on the board, and when they get to three of them, you can discard the tokens to banish a character
Being a 4-mana 1/1 is rough, but it can grow every turn and the potential for doubling gigantic spells/creatures is huge
Card grading not only helps you maximize the value of your collection but also protects them from dust, debris and other forms of wear and tear by encapsulating them in protective holders
Or you can just run it with Conjurer's Closet and start stealing things for keeps