I don't think wheel is in contention of being cut anywhere and magus of the wheel seems more like a beater that helps refill.
However the Blasting Cannons, Outpost Siege, and various Chandra compare better. They are all 4 mana and give a kind of repetitive card advantage. While I like that this can go off it doesn't seem as good as the Chandras for their other options. Outpost siege has a second ability which sometimes is clutch. Cannons is pretty bad and can't even get you lands.
So if you are playing Chandra, Pyromaster, Outpost Siege, or Blasting Cannons I think this is worth a try.
As a side not in cubes supporting storm or very into spells matter I would give this a look.
However the Blasting Cannons, Outpost Siege, and various Chandra compare better. They are all 4 mana and give a kind of repetitive card advantage. While I like that this can go off it doesn't seem as good as the Chandras for their other options. Outpost siege has a second ability which sometimes is clutch. Cannons is pretty bad and can't even get you lands.
So if you are playing Chandra, Pyromaster, Outpost Siege, or Blasting Cannons I think this is worth a try.
As a side not in cubes supporting storm or very into spells matter I would give this a look.