The rarest cards in each set, though, are found in Collector Boosters
While technically only Liliana's -3 ability qualifies here, the true reason she's made the number two slot is that she easily slots into any mono-black deck imaginable, providing a means to search for a land every turn while pumping her loyalty counters, a means to either hit for the win or remove a problem creature with her -3, or an emblem that will make sure you have the most mana at the table no matter what
It ranks low for having no use outside a dedicated minotaur deck
It will include two cardsa non-foil version of Kenrith, the Returned King (the Buy-a-Box promo) and a borderless Garruk, Cursed Huntsmanan art print of Garruk, an Ultra Pro binder, a three-by-three cutout from a rare and mythic Throne of Eldraine foil sheet, and 16 Collector Boosters
You could easily trade your one- and two-drop in Limited and then win the game with this massive card advantage and tempo swing on turn three
When you play this card, you may discard another card from your hand
