Level up has proved to be a great mechanic offering cards that scale well throughout that game complete with interesting choices
I'd much rather be making a free squirrel every turn than just buffing a Servant of the Scale
Venser also makes random other cards way stronger, like Nasty End sacrifice The Hollow to draw 3 cards for 2 mana, Vat of Rebirth gets loaded with oil as The Hollow dies, or Ringsight to give Venser skulk so we can bypass blockers while tutoring up a card
As an amazing little detail, the Zombies in her art have cowboy hats on, which is just fantastic
Players: With new leaders and expanded mechanics, opening 24 packs gives you a solid foundation to build or upgrade competitive decks
Reflector Mage played a key role in decks featuring Rally the Ancestors, and then later Bant Company, such that by the time that Azorius Flash was dominating the format people were very fed up with the card