Hearthpwn

It should be, heal 1 or 2, draw a card since power word shield boosts a creature by 2 health and draw a card. Or maybe when it's only played, you draw a card then you heal 2 for every attack that creature makes.

Just something to combo with darkbane and lightbane

give it to an opponents minion?! I like this a lot throw it on a minion you don't like attacking, pairs well with cards that have an effect with healing like Lightwarden

I wonder if facehunters/facepaladins will be stupid enough to keep attacking when you put this on their minions :P  We'll certainly find out who the bots are :)  I'm actually half-expecting them to still go face when you put this on a low attack minion; they often ignore my illuminators in my favourite secrets deck even when they could trade it on board.

Use on Lightwarden or Holy Champion and hit face for extra 2 damage for every turn.

I think developer's logic is this. But, i think it doesn't work like that :P

Could definitely see this as a 1-of against aggro decks. Putting it on an enemy minion heals you for 4 every time it attacks.

That moment you put Power Word: Glory on the Huffer and just laugh.

If the meta is really fast, MAYBE? I don't really see it working out with current priest lists.

Does blessing of might work?

I don't think so. Case closed imo.

EDIT: I meant blessing of wisdom.

Doesn't work? Just look at all these eboladins!

Sorry, wrong card: I meant blessing of wisdom.

I don't think it's good enough. 

Aggro counter I guess. But they'll just stop attacking with one of their tiny charge minions and move on.

Not worthy of a power word

give it to 4 attack minions and forget about them