channel card mtg (Foil-etched) add 1 to your mana pool. Can someone explain this card?

If you have Blue, you are running the Drake

Then, you use Mind Over Matter to tap out your opponent (to avoid counters) and then continually untap your Tolarian Academy, which is likely tapping for three, five, or even more mana

No, the story of this card was not its creation but its journey to print

These lands sit at the very top of a playability pile being things I am almost never leaving out of a deck which is some reasonable % black, say a quarter or so minimum

The idea of Black Mage Aggro is to make a ton of Black Mage tokens and cast multiple noncreature spells to make them deal damage, so you never even need to attack your opponent to beat them