Making all your druids cantrip ensures you see the cards needed to end the game, and its hard for your opponents to make a comeback after you steal all their lands
Once you've announced that you're casting a spell, players can't take any actions until you've finished doing so
Chandra, Fire of Kaladesh isnt a terrible commander, but it probably wont have a huge impact unless youre able to flip it into Chandra, Roaring Flame and get off an ultimate ability
This claim was particularly bold, as Wizards of the Coast had already banned like a dozen cards, with the intention of completely killing combo winter. It didnt take him long
Various other rules throughout the document have also been updated to accommodate battles, including rules for combat, counters, types, state-based actions, and so on
As far as possible late-game power goes, the mill deck has Persistent Nightmare and Deserts to sacrifice