I love how the mechanic leverages Magics history and has this neat little narrative/mechanical cohesion within each spellbook, but the implementation feels insufficiently random, awkwardly presented, and not always immediately obvious what the narrative/mechanical cohesion is
Blink is very likely to swing advantage on the battlefield in your favor over time, and while your opponent will have an easy way to ignore Alien Angels as blockers often enough, they are still pretty valuable attackers
Scrap Trawler, otherwise, has a couple of other benefits
On attack, it forces an opponent to sacrifice a creature, and if they do, you get a 2/2 Zombie token for your trouble
I do have Revised Dual Lands because I happen to own them