We have yet to see any previews of Regalia, but if there is indeed one, it might just be a decent enough Vehicle that From Father to Son will see some play in Standard (or you just like some Final Fantasy flavour in your games)!
Outlast is an activated ability that appears on creatures, and simply states that if you pay the cost (which always involves tapping the creature), you put a +1/+1 counter on that creature
Green-blue (or possibly Bant) is my pick for the best new deck coming out of Teenage Mutant Ninja Turtles
Provided you can get through the queue, which often breaks in drops like this, if you're not there the second sales open, you'll likely be too late to grab them
Maybe in Black-Bordered World
Many Commander players can struggle with this extreme level of choice, and decision paralysis is something I personally experience often when deciding on decks to build