While the answer is up for debateand even lawyers have differing views, with some saying that Wizards would almost certainly be brought to court, while others saying that even if that did happen, the lawsuit would assuredly failthe fact remains that the original Reserved List promise didn't include premium (foil) cards
Run this with blink and recursion effects and kill all of the players
Illustrated by Narendra Bintara Adi Standard Legal Alchemy Legal Pioneer Legal Historic Legal Modern Legal Brawl Legal Legacy Legal Comp
Much like Craterhoof in Green, this will often be a game-ending card
If you're looking for positive benefits of your own, you can get lifegain from Ikra Shidiqi, the Usurper, ramp from Arbor Adherent, and card draw from Abzan Beastmaster
This means no one is safe as long as you have Mulan leading the charge