These are essentially the 1st Edition cards of Disney Lorcana
In Europe, the card has seen a very light lift in value over time, with copies trending around six euro, while the American retailers have it closer to $15
An Amber type Floodborn character, Vanellope normally costs 4 Ink to play, but using Shift, shell only cost 2
The main ones you're looking for are the 'Karn-struct' Construct tokens that get +1/+1 for each artifact you control
Pile shuffling has several additional benefits as well: It runs less of a risk of the player accidentally seeing a card or dropping a card face up, since they can be held with the faces pointing straight downwards, unlike mash shuffling where that would be an extremely awkward position for one's hands
This is an interesting way to tempt people to vote with you, but, again, its not as beneficial when the votes are secret