The set will introduce a slew of new mechanics, including Outlaws (defined as creatures with the Assassin, Mercenary, Pirate, Rogue or Warlock subtype), Crimes (which are committed when a player targets an opponent or any of their spells, permanents, or graveyard), Spree (an addition to modal type spells), and Mounts and Saddle
Withering Boons almost irrelevant cost of three life will get you out of a jam very quickly, even if its just a worse Essence Scatter
10 Break The Spell Break the Spell is a simple spell that lets players destroy an enchantment for one white mana at instant speed
Some could get printed as filler in some sets, but who cares if we get something like Shorecomber Crab in paper Magic
Treacherous Terrain The effect is definitely a little slow, but Treacherous Terrain can be the card to finish the job in a long and grindy game of Commander