Burn is still not the best strategy in EDH, but I love that we have new toys to play with
Teamwork Teamwork appears on selected instants and sorceries as an optional additional cost
Other creatures have the "Augment" ability and can only be played on top of a Host creature
There are just more efficient or effective alternatives that don't come with the other fluff if counterspells are what you need
During the main phase, players have a choice of actions, and may perform them in any order, as many times as they want, or as their hand or DON
As many have realized by now, theres something weird with a handful of cards in the set, to the point where Facebook groups dedicated to misprints and printing errors are being required to do blanket PSAs to prevent a deluge of posts