There will be two beautiful Elite Trainer Boxes available - one for each Scarlet and Violet box legendary
However, the "Prize" section on an Attraction is not a triggered ability, so that can't be chosen separately
Ive been researching signatures and value, and since signed cards are so rarely listed on TCG and the like, actual data tends to be restricted to eBays completed auctions for the category
That attack can deal a lot of damage if you let Nikki attach enough Energy attach to it, so knock out Exeggcute before it can evolve
Let's look at an example with Prowcatcher Specialist : This is a fairly basic red common creature with haste, not aggressively costed or overly impressive on its own
It gives you mana to play creatures, has decent removal, and can even be played earlier if youre willing to sacrifice some loyalty