Scion of the Ur-Dragon is fantastic at temporarily becoming a Dragon answer to a problem, but that's only one card in the deck
Illustrated by Daniel Ljunggren Standard Not Legal Alchemy Not Legal Pioneer Not Legal Historic Legal Modern Not Legal Brawl Legal Legacy Legal Comp
Like characters, locations have a lore value
And as it's free to put it in play, and free to put into your graveyard, it's absolute fodder for infinite loops
The use of just one mana color and the straightforward strategies , most of which appear very aggressive at face value, all lean into the fact that these decks are perfect for new players
What's great about this planeswalker commander is there are all sorts of avenues to go down, you've got trample and haste being relevant keywords you want on most of your creatures, burn damage providing a win con if you can make Boo (or your other creatures) big enough, and a renewable token that makes a great target for sacrifice effects