Not with anything that targets a creature on the battlefield
The biggest problem that most people had with Modern Masters was the inclusion of the Kamigawa Dragons
This strategy can be more expensive monetarily, but considering you've already spent $40 on a Secret Lair drop (or upwards of $30 buying Iron Man on the secondary market), we're going to assume that money isn't a huge barrier for you
Like Seasons Past, the card is slow, durdly, and needs to be built-around
PSA is kind of daunting, I would love to have cards graded but never went through and took the time because it seemed complicated
In this regard you can play very politically with Kraj, adopting a pseudo-Group Hug style until you suddenly win out of nowhere with the right combination of abilities