The other Commander that was shown was Jared Carthalion, the star of the MtG comic series who was able to master all five colors
Since Narsets ability states that your opponents cant draw more than one card per turn, Wheel of Fortune will force them to discard their entire hand and only draw one back, while you draw the full seven
When Chaofeng, Phantom of the Yang Zing is successfully summoned, trigger the effect of Denglong, First of the Yang Zing , Special Summon Zefraniu, Secret of the Yang Zing from the Deck
(It deals damage to creatures in the form of -1/-1 counters.) Equipped creature gets +1/+2
This deck can VERY QUICKLY create a large army of huge infect creatures and overwhelm your opponent
Its also likely that the three cards will have a Special Illustration Rare variant, which could become highly sought after cards on the secondary market