Once per turn, when another monster's effect is activated (Quick Effect): You can negate the activation, and if you do, destroy that monster, and if you do that, this card gains ATK equal to the destroyed monster's original ATK until the end of this turn
I, of course, might be biased because I was not a Zoroark player back then (well, I was in Expanded) and on the contrary, some of my best results as a competitor have been thanks to Mew VMAX but trying to remain objective I still think Mew is a bit highly placed
Punishing Damage: Whereas Incremental Damage is often triggered by your efforts, other forms hurt opponents whenever they make certain plays (Cemetery Gatekeeper, Harsh Mentor, Eidolon of the Great Revel, Zo-Zu the Punisher, Manabarbs), limiting their choices in what plays can be safely made as the game progresses
If Volatile Fault's ability resolves, the target nonbasic land's controller gets to search for a basic land card even if the land wasn't destroyed by Volatile Fault's ability