I had to make some difficult decisions with the number of each of these cards when leveling down from Yorion
Once you have the four cards that you needed in your Questbook, show the cards and your book to a Cast Member at the Illumineers Lounge in the Morocco Pavilion or in the Odyssey, and they will stamp / punch your card
Unlike the Signets, they can tap for either colored or colorless mana, but the former comes at the cost of life
During the Base Set era, Blastoise itself was often the main attacker in this archetype, as its Hydro Pump attack could do a robust (for the time) 60 damage a pop
In a lot of matchups however these are just dorks and are of less value than a card from your deck, even just a basic forest
Up front, Glaceon ex, showing off its terastal crown, blends at home into the shuddering theme