Small creatures, big plans.
The name of the game is to figure out how to win given that creatures are roughly equal to one another. The format is generally slower and each deck should have a plan to win through evasion or an ability to extend your board presence beyond just playing the cards you draw. Many of the engines are creature based, so removal is valuable but may need to be saved to deal with key threats.
Several cards have been errata'd to be rebels and thus can be searched up through cards like Lin Sivvi, Defiant Hero
There are also some cards like Squadron Hawk, Battalion Foot Soldier, Accumulated Knowledge, and Ancestral Anger that care about having multiples. By drafting the one copy in the cube, you will be handed 2 additional copies at the end of the draft.
A core theme of the cube is managing to find ways to turn mana into advantage while not having it be uninteractable. Singleton is broken to allow a double cycle of bouncelands to help push people into having more mana in their deck.