Much of the talk Ive seen so far has involved Nethroi, Apex of Death (some it from me) and Illuna, Apex of Wishes, but I suspect that well see some creative builds from the community with the others as well
Stoneforge Mystic A pretty stupid card
When this artifact is put into a graveyard from the battlefield, at the beginning of each of your upkeeps for the rest of the game, remove all mire counters from a land that a mire counter was put onto with this artifact but that a mire counter has not been removed from with this artifact
The five-mana Rakdos 5/4 deathtouch and then menace as evasion is next
ETBs will trigger every time the card enters the battlefield, from anywhere, for any reason
The best cards to pair with Braids will usually be Artifacts and Enchantments, as your opponents are less likely to be able to sacrifice those permanents than Creatures, but what makes her unique is that she pairs really well with cards that don't work well in other decks