In fact, I have been testing a TrodeBox for some time that focuses primarily on Terrakion, and thus have been planning to write a CotD on him for a while the fact he is doing well/plowing through our current meta and taking this win (and maybe others?) only makes him more relevant (not to mention I have tested with mono Terrakion as well and enjoyed it more on that below)
It's also managed to hold its price well
In almost all cases, PSA is extremely off with their estimates compared to actual market value
Shining Revelry Charizard ex does not require you to discard Energy but caps out at 150 and costs 5, whereas Genetic Apex Charizard ex can do 200 and has the downside of discarding 2 Fire Energy
Black Lotus is a zero-cost card that can be tapped and sacrificed for three mana of any color
Together, the printing of Gideon, Ally of Zendikar and the price increase of Jace, Vryn's Prodigy adds about $110 to the cost of a deck