Some flavor findings:
- The Underworld seem to have also nice looking parts (Ilysia, apparently play on Elysian Fields)
- there seem to be non-feral minotaurs (the Skophos polis, Warden of the Chained, Dreamshaper Shaman), unlike the Rageblood horde, branching into green.
- Elspeth bears the moniker "Sun's Nemesis"
- an "escape" mechanic allowing things to be cast from graveyard for the price of exiling other cards from graveyard (Elspeth has it as well)
- Phenax used to be a mortal, who escaped the Underworld
- Ashiok is back (as rather expected)
- there seems to be a new god or something (the Furious Rise card "Klethys set out to mend the destiny of Theros, her fury guiding every stitch." with a giant figure above the land.