channel card mtg (Foil-etched) any time you could activate a mana ability Channel Harm MTG - Fate

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

10 Dimir House Guard The Common Tutor Dimir House Guard does a whole lot for being a simple card

Rite of Replication Rite of Replication is one of my top picks due to how devastating it can be in a game of Commander

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

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

For cards that have closed out the most numbers of games the man lands would be well up there with all the best threats in the cube