There is a good reason why Izzet is so popular in Standard play and why this Prismari deck takes those same principles and stretches them into a 100-card singleton deck that's a ton of fun to play with but frustrating as hell to play against.
From that point on, they cant cast spells or activate abilities, and they have to reveal their hands
Earthbending allows players to turn any land they control into a creature with haste and a number of +1/+1 counters on it
It can be a big deal even in blue decks, spreading out the cost of your effects between your colours (assuming you are fairly even split already) typically makes your life a lot easier
For that reason, youll likely want to build this as a Mardu Midrange deck
From a Judge group on Facebook From gatherer for Zaxara, the Exemplary: If an effect, such as that of Parallel Lives, causes Zaxaras ability to create multiple Hydra tokens, they each receive X +1/+1 counters