Disclaimer: Your opponents may still force you to shuffle your library through spells or abilities
In addition to her token generation ability, she gives your flying creatures a power boost , which allows them to hit much harder
This prevents them until the release of additional support or a meta shift from standing out
Emberheart Challenger also has the Valiant ability, which states that whenever it's targeted by a spell or ability you control for the first time in a turn, you exile the top card of your library and can cast it until the end of that turn
Day of Judgment and Star of Extinction are much worse, falling into the bulk board wipe category you often see represented in precons
Also, Pyramids is an artifact, not a land