Cool I won the last one! Thanks for these giveaways!!
Under two mana cards, eh? I won't state the obvious here (Creeping Ooze, Furious Chicken), I love the Halving Alchemist. At 2 mana it can half the attack of any card it hits including magic users. It also has 1 armor so it can typically take 2 hits. Being a neutral card, it can be used in almost all battles as well!