I voted Eternity, Dune Scorpion, and Golden Nymph.
#1. Golden Nymph
Draw power, good hitter, two-hits-to-kill HP! Also, when combined with several in a deck (C'mon Oracle give me more of these!) and SoR's can make for quite the drawing advantage (Mitosis too?).
#2. Eternity
Anti-deckout which has powered many a stall for me in Leagues. Mmmmmmm, CC that is multi-funciton - against opponent or for yourself!
#3. Dune Scorpion
SPlat. Although now that SPlat is mostly dead, I like a card that makes the opponent have to 2nd-guess the value of playing every card and that can build the attack even after scorpion is killed/neutralized. Stallbreaker, this.