Here is a look at some of these fancier cards that I pulled (click on any to view it larger): Definitely pulled some really neat cards, including some packs that had two separate fancy cards
The final big proliferate-friendly card I'd recommend is Tezzeret the Seeker, which can find your important artifacts more efficiently than the other tutors can, plus it also acts as huge ramp if you've got an Everflowing Chalice or Empowered Autogenerator on the battlefield
This is the kind of thing we only do roughly every fifteen years (give or take), so it seems like a good time to talk about what that requires
Incubate creates a token with a set number of +1/+1 counters that you can turn into a phyrexian creature for two colourless mana
If none of your Pokmon have an Energy attached, draw cards until you have 7 cards in your hand instead
This card, Kellan, the Fae-Blooded, could be beneficial in a deck focused on tribal synergies or a deck that utilizes a lot of cheap spells