shuffle them into your Deck, and if you do, draw 1 card
In the long term, I wouldn't be surprised to see them included in Commander decks in the same manner that Toxic Deluge has been featured in a variety of decks in recent releases
When you go to drop your own Dockside Extortionist you are either forcing your opponents to sacrifice their Treasure tokens early in response, or they will be giving you a ton of Treasure tokens of your own
9 Exodius The Ultimate Forbidden Lord A balanced version of Exodia, Exodius is a level 10 monster that can only be special summoned by shuffling all monsters in the graveyard into the deck
And fun cards like Academy Manufactor can turn every investigate into three different tokens one Clue, one Food, and one Treasure which token doublers can multiply even further
Stopping landwalk isnt bad if the ability goes wide