The only problem with Magus of the Mirror is its cost, at 6 mana, and its lack of immediate impact on the board, since it needs to wait a turn before it can tap and activate
He would typically Necropotence up extra just so he could brain his opponent with the Firestorm, recognizing that a delta of one life point on his part could equate to 5 or 6 damage as he discarded his hand
During the Phyrexian Invasion, he was compleated
Yes, the Pokemon dragon that millions of kids were chasing back in the day
Its one of the most-played white cards in the entire Commander format, living in hundreds of thousands of decklists, and that relentless demand keeps it hovering north of $40
The problem is that Ruby/Sapphire plays the control shell better thanks to its inclusion of Be Prepared