In Magic, the term 'mill' refers to the act of taking cards from the top of your library and placing them in your graveyard
This assumes you dont even block, which Sorins long-lasting lifelink clause allows you to do if you have to
Or if youre post-board against an aggro deck and you keep a hand with Glistening Deluge, you might as well save your non-targeted discard until after you soak up their cheap spells on turn three
Each Draft Booster contains a legendary creature or planeswalker, a legendary Background, and a rare or mythic rare that isn't legendary
A 1/5 with Reach is probably just going to enable a block you didnt have before, which isnt a great thing to give up a card for most of the time, and making something into a 3/3 with Trample wont always matter either
Well likely see them reintroduced learn and lessons in future expansions based on the positive reception and ease of use