Overall, this strategy is relatively unproven, but its ability to control a slower game is almost unmatched in the current format
No, we wont be looking at the new Transformers cards, but rather the Showcase Schematics of the Retro Artifacts series in the recently released The Brothers War expansion
Arceus was also one of the most competitively relevant Pokemon during the Sword and Shield Standard format, which means competitive players have an attachment to this card that goes beyond pure aesthetics
A crease may be visible
(I don't know how you'd go about doing that.) The original Birds feel conclusive with a 2800 ATK Princess, so perhaps you could extend the reach of their effect to Princess, King, and Queen, and then toning down the ATK/DEF gains to 900 at the most
Sealed product like booster boxes and Elite Trainer Boxes are moving even faster than singles in some markets