Riding the Dilu Horse ($580) A sorcery-speed Jump spell
For just three mana, one of each of the Bant colors, Morska comes down quickly, potentially as early as your second turn, and at the top of each of your turns you investigate, giving you a Clue token which you can use to draw a card in exchange for two mana
Youll get multiple rares, foils, and at least one special treatment card per pack
Its part of a super-elite club that also includes Talon Gates of Madara, said club being lands that can put themselves into play outside of your land drop. This, essentially, makes it a ramp piece you can run in a land slot
With Smothering Tithe in play, this makes Bennie Bracks, Zoologist incredibly effective at drawing cards