As a seller, you set your asking price, but buyers can also place bids on your cards
anyway, a couple highlights from my set-up: First: The Charizard and Blastoise drawings were both hand-drawn gifts from my sister-in-law
Other monsters can make use of this tactic as well Aurora Paragon will not be destroyed if another monster is Normal Summoned, The Legendary Exodia Incarnate will not return a Forbidden One monster from its controller's Graveyard to their hand and lose ATK, and so on
Playing cards from the top of your library both preserves the cards in your hand for later use and serves as pseudo card draw that digs deeper into your deck so that you can find your bombs
An inked card is not valid for official tournament play, as it can be considered marked or improperly altered
As to how to find a Shiny Noibat, it will be a bit tedious