Normally you wouldn't want to exert a shift target before playing a Floodborn on top of them, but in this case, Determined Defender is a Bodyguard, so it's actually advantageous for him to come out exerted
It doesnt fall off on its own, but fake holograms could be scraped off with a tool, whereas holograms on real cards are flush with the rest of the cardboard
Additionally, creating tokens like Treasures, Clues, or Blood tokens can contribute to card advantage in decks that benefit from having these resources on the battlefield
More sac outlets are needed so we can always be sure our creatures are dying when we need them to
The problem here is that while blue and black don't overlap much in actual mechanics, they have a lot of abilities that are close to the other but just a little different