The key is that the error needs to be dramatic enough to be obviously unintentional, not just a slightly off-center card that could be mistaken for normal production variance
Additionally, a1-36-charizard-ex's Crimson Storm can one-shot a1-4-venusaur-ex, preventing it from healing itself up and giving you 2 Match Points
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
And which should win really depends on whether you value the impact back at the time or their longevity
-7: You get an emblem with "You may play lands and cast permanent spells from your graveyard." Loyalty: 4 Notes: 0322 - Borderless Art You might also be interested in these products
If it werent, or if they still had the banned as a commander distinction, Im confident this Sultai commander would still be legal, since Narset, Parter of Veils is essentially doing the same thing