It also fits well into blue-based artifact decks as a way to draw cards cheaply and get a nice creature in play
Damage that is prevented never occurs, so any triggered abilities that trigger due to combat damage that would have been dealt by Weeping Angel won't trigger
You can also keep your secret beater in your hand to keep it safe from sorcery speed removal such as Kaya's Wrath
Wizards themselves havent managed to do that, the two printed two-mana planeswalkers being on opposite ends of that scale, Wrenn and Six being ban-worthy in legacy and Tibalt being a joke to this day, even a constructed-playable card later
And more importantly, we were having fun
If Grist, Voracious Larva leaves the battlefield while its triggered ability is on the stack, you can't exile it from the zone it's put into, so you won't return it to the battlefield transformed under its owner's control