In the article announcing the banning, Wizards suggested that it was willing to see if players would tolerate a "skill-testing, one-deck metagame." As such, it seems that a deck being 75% of the format doesn't automatically necessitate a banning
If Yahenni and a creature an opponent controls die simultaneously (perhaps because they fought or were in combat together), Yahenni won't be on the battlefield as its triggered ability resolves
There are also sold results of a PSA 5 selling for 320 in October of 2024
In some ways, I'd almost argue that this design is better than the odd angle for Mewtwo on the Special Illustration Rare, but the design is unfortunately overwhelmed by the golden color, which brings it down a fair bit
Illustrated by Pete Venters Standard Not Legal Alchemy Legal Pioneer Not Legal Historic Legal Modern Not Legal Brawl Legal Legacy Not Legal Comp
With that said, not all of the original card designs will be making their return, but there are still plenty to look forward to