For example, if a land that has become a creature dies, an ability that triggers when it dies triggers twice
Other than that, we see UW and Jeskai strategies of various stripes continue to post results in December, while Eldrazi and Taxes and Abzan Company have slid down the rankings slightly since September
And then, at the end, you have a death trigger for 6 damage to someone's face, which can be a bit of a deterrent
I remember calling out to Dave Humpherys, who was at the time the lead developer of the set (Dave, Billy Moreno, and Ben Hayes were each the lead developer for a while Unstable was in development for years)
A class of card that sees a lot of discussion, mainly around just how many you should be running in your deck
This could have been the herald of Izzet Artifacts and had a version of this card existed even a year earlier, they could have been an upgrade from Kurkesh, Onakke Ancient for those who were looking for this kind of effect