Unfortunately, since the card's included in the Commander banlist, and isn't you're unlikely to experience the joy of trading a treasure for a Blightsteel Colossus - though you're allowed to run a single copy in Vintage, if you've got the cash
Okay, we need to have a frank discussion of what is and is not a horse
Character cards from this deck which are the most advantageous plays in the early game are Mr
Lavinia, Foil to Conspiracy conveniently taps to add two colorless mana, which is enough to sacrifice Clue tokens, but you can only activate it during an opponents turn
Also, most Prosper decks are relentless value engines that often require your opponents to team up to keep you in check, so even if your deck isnt optimized, you can expect people to keep a watchful eye
Most of the new cards are cute but not auto-includes in any particular strategy