They are Prismari, the Inspiration, Silverquill, the Disputant, Quandrix, the Proof, and Witherbloom, the Balancer, each great commanders on their own, but as leaders of dragons, not so much
When trading cards directly rather than buying with cash, buyers should look up the recent sold prices of both cards (the one youre giving and the one youre getting) since a trade is only fair if the two are close in value, and beginners often check only the card they want and give away something worth more
This is the tip of what Arena Tutor can offer, aside from other valuable utilities like collection tracking and Draft support, so I recommend checking it out
They exist in their own fictional universes and are simply being represented through Magic cards
Get a high-value hit from a box, you can stand to make back your money, and a whole lot more, off a single card
Turn 3 - Cultivate or Kodama's Reach, drop a land from your hand