According to WotC, Prerelease events in Mainland China will now coincide with the official release of the highly-anticipated set, June 1319
In its initial configuration, it uses Balustrade Spy or Undercity Informer to mill its entire deck, recur some creatures like Narcomoeba and Poxwalkers, and use those creatures to fuel the flashback cost of Dread Return, targeting Thassa's Oracle to win immediately
Amonkhet (2017) showed us this version of the draw two cards, pay two life at common paradigm
So why did Looter finish higher
To wit, new adamant cards include bonuses if you spend at least three of a particular color of mana to cast them
Don't sleep on Calem and Revavroom : These non-ex cards are the backbone of the strongest decks in the set