Blood Imp is now a 0/1 (down from 1/1) and now reads: Stealth. At the end of your turn, give another random friendly minion +1 Health.
The Warlock has three very strong 1-cost minions and that made the Warlock rush deck slightly stronger than we were comfortable with.
Flame Imp’s Battlecry now deals 3 damage (up from 2).
This minor change should help bring the warlock’s early game down a small amount. We’re keeping our eye on other cards that help the Warlock maintain early board advantage and will make additional changes if necessary in a future patch.
Blizzard knows they are dealing with a lasting problem.
Why not change the Hero Power to: Take 2 damage. Draw a card at the start of your next turn ? Then they could try to balance things from there. Few Hero Power changes have been made. The only one I know of is the Shaman Healing Totem.