After looking at the new legendaries I think I'm most interested in Thryx, the Sudden Storm and Atris, Oracle of Half-Truths. I know how I'd build Thryx but I'm a little stumped on ideas for Atris. I thought I'd bring it to the community and we could brainstorm together.
The first thought I really had was a deck centering around top deck manipulation and blinking so you always know what your opponent's are giving you. So you'd want things like Sensei's Divining Top, Scroll Rack and lots of scry. I thought about making it a deck that you'd win using Lab Maniac, Jace, Wielder of Mysteries or Thassa's Oracle but it seems like a lot of work to go through for those since there are decks where it's far easier to get those kinds of cards to win. If folks have ideas I'd love to hear them.
A good start is look at some Taigam, Sidisi's Hand EDH decklists as a template. He's a self mill deck. Atris, Oracle of Half-Truths is pretty much an ETB version allowing you to retain the ability to draw.
The first thought I really had was a deck centering around top deck manipulation and blinking so you always know what your opponent's are giving you. So you'd want things like Sensei's Divining Top, Scroll Rack and lots of scry. I thought about making it a deck that you'd win using Lab Maniac, Jace, Wielder of Mysteries or Thassa's Oracle but it seems like a lot of work to go through for those since there are decks where it's far easier to get those kinds of cards to win. If folks have ideas I'd love to hear them.