Hearthpwn

Basically it sacrifices a target friendly minion to heal your hero whatever there life was at when you sacrificed them. It comes from WC3 where DK could sacrifice minions for a % of their max life. The Hero power may be underpowered, changing the power to heal you for the Minions max life would possibly balance it.   EX: youre huge 2/7 taunt is now at 2/1. you sacrifice it for the 7 hp hero heal.

Many of the card designs were around the new Minion Type "Undead". Some cards do seem more situational in retrospect such as "Death Coil" which could be changed to "Deal 2 damage to an enemy minion or heal a friendly Undead minion by 3 life."

Thanks for Feedback though.

It's definitely too strong for its mana cost. Anyone saying otherwise probably defended undertaker/leeroy/buzzard+unleash/overspark

i can see it being good even at 5 mana ..