The color you choose for The Prismatic Piper during deckbuilding will determine its color identity
Masked Dragon is another reason to play the deck
How many times have you had an effect like this or Gravedigger or Izzet Chronarch without any potential targets in the graveyard
Of course, creatures are just an exampleyou can build your deck in the same way but with instants, sorceries, enchantments, or whatever card type your desire, as long as you have enough cyclers
This time, you're only doing 20 damage, but you can use Yoga Loop one more time on your turn (technically, you're taking another turn outright) if you knock out the target
If no card is discarded, most likely because that player's hand is empty and an effect says they can't draw cards, the conniving creature does not receive a +1/+1 counter