If singles become worthless, that part of their business would be gone overnight
Theyre powerful, immortal, and they come with a whole host of awesome powers
The best example of this in Adventures in the Forgotten Realms is Treasure Chest, which is a three-mana artifact
Your thing can be basically anything, but this is easiest to see if we look to Kindred decks having a critical mass of creatures of your chosen type and/or cards that care about that type is crucial to amassing synergies and building a board
It also looks really cool, with Shere Khan holding up his paw menacingly, probably hatching a plot thats gonna be really unenjoyable for somebody
I suppose it also plays well with Teferi, Time Raveler against tokens or Hangarback Walker / Walking Ballista I mentioned this as a sideboard option