Professor’s Research

Professor’s Research might be on the most basic of cards, but it’s invaluable no matter the deck. Playing it allows you to draw two cards to add to your hand. These 20-card decks aren’t big by any means, but there are still times when you’re not drawing what you need. This has a great chance of giving you the right card(s) or at least milling out the deck to get them sooner.
I can’t imagine putting together any deck without including this card in there. Whether you play it at the beginning of a match to give yourself an advantage or use it in the climactic final turns, the card is great.