If you want a detailed run down of the original deck, take a look at my previous article, but for reference, here's the original list
A three mana 2/2 flyer isnt too bad, and one that stuns something on ETB is probably a 3.0, its just a great tempo play to add to the board while getting a creature out of the way
You want it but you don't always need it, you can just go quicker or solve problems more indirectly
What you don't have is a great way of recovering from a board wipe , so be sure to not overextend yourself by casting your entire hand before you have an easy way of refilling it, like Inspiring Call
They organize drafts through their community, offer insight and feedback to new Cube designers, and host The Jank Tank Podcast, offering general Cube advise and design philosophies