Hearthpwn

"A technique pioneered by the legendary priest, Bon'Jovi, who kept his party members living by a prayer."

This card is based on the Priest ability from WoW of the same name, and the idea for hearthstone was to come up with a cheap spell like Power Word: Shield without the massive draw upside, but with a potential spreading upside if used on a turn where the player is attempting to make a lot of value trades. It can help your minions trade up and stay on the board.

Edited to italicize flavor text.