Great Tusk Basic Mill Single Prize

Mill decks are currently not very competitive in Expanded, but if you're looking for one, Great Tusk is your best bet. Milling four cards per turn is pretty solid, and although the requirement of having played an Ancient Supporter card is restrictive, Professor Sada's Vitality synergizes well with Radiant Greninja and Lunatone, and gives the deck both draw and Energy acceleration. As a Fighting-type Pokémon, Great Tusk also benefits from Focus Sash, increasing its durability by usually letting it survive one hit.

There are plenty of challenges that a deck like Great Tusk faces, from Item locking limiting the amount of times it can play Professor Sada's Vitality to decks using Field Blower or Faba to remove Focus Sash. But there's also, maybe, some unexplored potential here.