Of course, a dedicated Etrata deck will usually have even better ways to cheat this downside: phasing or flickering her out of play before the shuffle, attacking with copies of the original or copying the trigger itself, or even destroying the target with some other assassin in response to fizzle the shuffle
Collector boosters focus on foils and rare treatments, making them more fit for collectors, while set boosters lean toward casual fun with story-driven cards and regular lands for more regular play
The equip ability on its own, without outside help from cards like Leonin Shikari, cannot be activated at instant speed, so if you play an Artificers Hex on an equipment thats already attached to a creature, they will not be able to remove that equipment before they are in their main phase, guaranteeing you a dead creature
(2021-06-18) You must still follow all timing restrictions and pay all costs when casting the exiled card