Lamplighter needs to be nerfed into the ground. Such a ridiculous card to be created in standard when there's six different return to hand cards in the game.
Even without returning to hand, this card is broken. Elemental mage is a very strong deck right now, and pretty much 2 pyroblasts for 3 mana allow you to end games very quickly. And you can get more. And then, you can bounce them using that one pandaren that also gives +1/+1.
Hmm shockspitter in hunter. Very broken, but what if we made a better version in rogue instead that also can fill board and can do more dmg? Hmm yes, good