Plus, for a rundown of all the cards across the set and where you can find them, check out our Collecting The Brothers' War article
Examples of non-rotating formats include Pioneer, Modern, and Commander.
Any time a creature does come into play under your control, you get to either add three green mana, put a +1/+1 counter on each creature you control, or scry two and then draw a card
Remember that big ol' milestone the TCG has coming up
Just about every MTG set has a red sorcery that does one damage to each creature an opponent (or every opponent) controls - with an equipped Ghyrson on the board, that becomes a one-sided board sweeper (indestructible creatures, and creatures with protection from red or blue not withstanding)
With that new player experience in mind, did you approach this set differently than you would a Universes Within set in any ways