I believe Wild Mongrel and Blast of Genius are pillars of the format
Jace, Architect of Thought: His ultimate ability (-8) can be seen as a type of multi-deck tutor, allowing you to search each player's library for a nonland card, exile it, and then cast it for free
Garland, Royal Kidnapper The Destined Warrior The Destined White Mage Chaos Shrine's Black Crystal The Destined Thief The Destined Black Mage #10
It focuses heavily on enters and leaving abilities on elements, with Evoke, Encore, and Myriad all showing up in the deck and fueling those abilities, along with tokens
First is that this could be a huge surprise attack if you can give this creature haste and put that counter on another creature to share the ability with Backup
At least one of the six cards has a guaranteed chance of being at least Rare