That means that you'll gain tons of loyalty with commonly played Blue cards like Brainstorm, Opt and so on, but not cards like Fact or Fiction that put cards from your library to your hand without drawing them
A small amount of white does not completely diminish a cards value, but you can be assured that card will not receive a perfect Grade
I wouldnt go hog wild on buying every single box, but its always a great feeling to order a happy meal, and open a pack of Pokemon cards
Opal Palace [Cat deck]: That's pretty good
You now have enough mana to repeat the process, making another two goblins with Pashalik Mons' ability, making mana with Mana Echoes, sacrificing one to Skirk Prospector, activating Pashalik Mons, and so on and so forth until your opponents are all dead