People are really bearish about singles in this set and with so many reasons to bust packs, its hard to blame them) and while it will most likely go down, I could see this catching on
Keeping a card in exile means you'll always have it available when you need it, while keeping your hand free for cards you're more likely to use
These are copiable values of the token that other effects may copy
Some even return to library which is usually slightly better than destroy but not always
(If only Frodo had slipped on a second copy of The Ring halfway through his journeys
(They create a Clue token.) II, IV Create a 2/2 black Alien Angel artifact creature token with first strike, vigilance, and "Whenever an opponent casts a creature spell, this permanent isn't a creature until end of turn." People often assume that Sagas are a strict progression from top to bottom, but actually, from a non-linear, non-subjective viewpoint, it's more like a big ball of wibbly wobbly, timey-wimey