With the addition of this as a common card, there are more rare slots to be opened up for further development while Foundations is legal, meaning more opportunities for interesting cards
Gray Ogres aren't exactly what you want to be doing in Modern, but Watchwolf is quite a bit better, and that's exactly where Scourge ends up in tandem with Eldrazi Temple
Toralf's other side, Toralf's Hammer, is a slightly inefficient equipment artifact that adds +3/+0 to a creature, with an added Lightning Bolt effect when you unequip it
All you need is a way to buff him up and land a hit, and you're off to the races with an instant army that replenishes itself with each attack, or even grows exponentially True, Shroofus will mostly see play in the 99 of other, multicolored decks, but he can make for a powerful commander all by himself
That feels like a heck of a good time in Limited play