mtg bloomburrow card sleeves 100CT (Bloomburrow Black Lotus), Matte Art Card Sleeves, Matte Back & Clear Front, 66x92mm : Toys & Games gloss front Bloomburrow Forest Standard Deck Protector

It goes well with the guilds theme and can give you an advantage in combat, but its hardly a good investment of five mana

Power level wise the card fits in just right in Modern, as there are a lot of threats which go under the card, and cards like Veil of Summer and Cavern of Souls give slower creature/combo decks enough counterplay against it

And the commander of his most famous deck

III Choose any number of artifact tokens and/or creature tokens you control with different names

Brawl Legal Vintage Legal Timeless Legal Commander Legal Pauper Not Legal Oathbreaker Legal Penny Legal Toolbox Notes and Rules Information for Boromir, Warden of the Tower: Players may cast spells that they know Boromir, Warden of the Tower will counter