The other thing Sythis has going for it is that it only costs two mana to start, making every subsequent recasting with commander tax relatively easy to pay
Trap cards have a pink frame and are effectively instants or cards with flash, but these are different because you need to set them face-down on the field before activating them later
Then that player puts the exiled cards that werent cast this way on the bottom of their library in a random order
In a neat touch, each colour corresponds to a different dragon
Colorless cards can also provide card draw regardless of what color you're playing, but (typically for colorless cards) do so at an inefficient cost, have limited uses, or require some level of setup and investment before you can reap the rewards
After all, it seems that Wizards of the Coast really does care about making the format successful once again