Currently Cavalier of Dawn sees no play, but it did see some play in Pioneer about a year ago
The Headless Horseman, Terror of Sleepy Hollow, has a very good on-play ability to banish every character with two strength or less
You pay all costs and follow all normal timing rules for cards played this way
Let the cycle begin anew
This five drop 5/5 on curve Naya colored dork gets bigger as more Auras are added in size, and that's card disadvantage if you kill it, but not without jumping through some targeted restrictions first, and you can Edict them, but they'll sac another dork, or Damnation the board, but respond with Heroic Intervention or just give it an indestructible Aura
If that explored card is a land, you can take a land from your hand and put it into play tapped