While your opponent needs exactly two prize cards before you can use Briar, there is no restriction for the player using it
I also use a bunch of CMC = 2 mana rocks to color fix mana as well as help get my Commander deployed a turn faster
With the CavernHoldFortress, you can customize the layout as much as you would like with the slotted modular divider system
In a deck like this, Unpredictable Cyclone will live up to its name by being unpredictable (you won't have any control over what creatures you get when you cycle a creature), but that's fine
The card has been revealed to have 140 HP and be able to deal the same in damage
That said, the best clue commanders have some sort of payoff for creating or sacrificing Clues beyond just letting you draw extra cards, whereas legends that just make Clues for the sake of card advantage will rank a little bit lower