The other push for commander is that its often seen as a place where kitchen table players get to play what they want, instead of what a format decides is necessary
It resolves even if the original spell is countered, and the original spell resolves even if the triggered ability is countered
Disdainful Stroke and Negate also dont hit all the important stuff, while Mystical Dispute catches all their heavy hitters
Munkidori has been doing very well competitively, and this beautifully rendered card is likely going to find its way into one of the many decks that run this version of the card already
The next time two target creatures would deal damage, you draw a card
The deck isn't the weakest precon -- far from it -- and it'll have games where it runs hot bouncing from Rishkar's Expertise to Shamanic Revelation and steamroll through some games, or just be left alone long enough to get some wins the most fair way possible, but it's certainly going to suffer from consistency issues