Hearthpwn

Step 1: Play Drakkari Spirit Guide

Step 2: Get it to 1 health

Step 3: Healing Rain

Step 4: Kill it off, summoning 5 Drakkari Spirit Guide with 1 health remaining

Step 5: Cast Healing Rain again

Step 6: ???

Step 7: Your opponent casts Plague of Murlocs into Lightning Storm

 Edit: On second thought, would the Reborn even stack? Or does it just count once