That Midnight Scavengers puts the card into your hand instead of on the battlefield is just too big of a tempo hit, even when things are going well
And mechanically speaking, that shows up beautifully here as his static ability doubles all damage he would deal, and at the beginning of each end step, if he dealt damage to another Creature that turn, he gets a +1/+1 counter
Plus its a mob boss Ninja and a little Goblin Samurai
I highly doubt there is one but just imagine
First, lets not forget that each pack of Unstable comes with a full-art land
According to the EDHREC data, it is played in 4% of all decks, which is quite good, but since it has been printed in various Commander products, its hard to say how many of those hits are specifically from those listed in various places on the net