Deathtouch Enabler - No one wants to chump block a 1/1 deathtouch token and trade down mana and a card, so with a deathtouch enabler this will force bad trades with non-cards or take a poison counter
Paying just 1 extra mana gives you a copy of that spell, which can swing the game fast
And sure, this can grant indestructibility when it enters, or can do it at instant speed if you have the mana for disguise which means that it will kill whatever blocks it and survive thanks to death touch and indestructibility, but it seems like youre just paying too much mana for this no matter how you deploy it
Others want them to be Draft Boosters, because they want to use their prizes to do more drafting
Play Boosters have a number of advantages over Draft and Set Boosters, which we'll discuss below
The high land count provides a good basis to summon them, supported by artifacts included in the deck or creature cards like Klauth or the Savage Ventmaw