Your commander determines what colors you can play in your deck, and so, while mono-colored commanders may seem like they'd be weaker since the card pool is more limited, some mono-colored commanders are among the best in the format
He will mark, I am sure, the history of cartomagie
If the card is a a relic or autograph Ill also include close up images of those parts of the card
Ragavan is a creature that you absolutely must deal with or itll run away with the game and make it feel like you cant come back
You can presumably cast anything you find off it since you already had the mana to cast the Mage, which could include mana rocks like Chromatic Lantern and Worn Powerstone, or disruptive pieces like Trinisphere and Static Orb
If you can take advantage of the "down sides" of this card, then absolutely run this in your deck