Goading ALL creatures an opponent controls is a terrific way to help thin the herd and force your foes into making attacks they would prefer not to make
Meanwhile, Yennett, Cryptic Sovereign is one of the most interesting build-around commanders in the set, facilitating a brand-new archetype in odd-converted-mana-cost tribal (while still being fine on its own, with the double evasion making it pretty easy to draw an extra card each turn if you can't cast that card for free), while Varina, Lich Queen finally unites all of the colors of Zombies, so if you are looking to add the white Amonkhet Zombies to the blue Innistrad Zombies on the traditional black Zombie base, she's the best (and only on-tribe) option for your commander
Three is a lot of mana to pay to counter something in the cube, five is incredibly painful
Growing Rites of Itlimoc is great for digging for a changeling creature to double-dip on Vojas attack trigger, and since Im hoping to go at least a little wide when it transforms into Itlimoc, Cradle of the Sun
These anchor the top of the set for collectors, while competitive players still look back at cards like Battle Frontier as format-defining tools that forced deck builders to rethink their strategies