Cascade itself is something of an alternative cost, and the requirements for being able to cast that exiled spell rely on the regular mana cost of a card rather than any alternative, optional cost
You need to take them at their word that theyll graciously accept these gifts from Gluntch, though, otherwise youll be staring down three players with a lot more advantage than you
It also, notably, has flying
Another one-card win condition puts this Golem high on the list
Its going to get in for damage, but not before ripping apart whatever is dearest to one of your opponents
With our Mono-White deck, we need to deal all 20 damage with our creatures, and occasionally we'll get our opponent down to five (or so) life and then our opponent will stabilize with a wrath or with creatures