Though green often employs a survival of the fittest philosophy (just look at those fight spells), you rarely see it tied to a straight destruction card
You can still perform this combo in Legacy and Commander, and its doing more work as an answer to planeswalkers these days, too
With that said, Onryo with the Eager Infusion poses an undercosted threat that trades up over and over and over again, trivializing the appeal of boss monster level champions
It is best to keep radiant cards as a hidden ace in the hole that can change the course of the game at the most unexpected moment
With the typical setup of running 3 Terraforming, 3 RotA, 3 Midfielder and 3 Stadium, you only had to open 2 certain cards, with each having a 1/6 chance in obtaining them
The threat of Flickerwisp with flash makes good attacks hard to find