Yeah, well if you time it right it could work in Control deck too, but I was thinking more of it as an aggro card just because there will always be something to protect.
Hmm, in my eyes the card has a built-in negative side. As you said, sometimes it will just be a useless expensive card.
other times would it could just be an extremely frustrating, toxic play.
I'm not sure why, as you can play around it and if your opponent decides to play it, let's say for the original cost of 7 mana, they won't have any mana left to clear your board or summon creatures to defend.
Healing yourself for 10 while reducing your opponent's health by a lot, does sound powerful but in that scenario it's more than likely you are already losing on the board and you don't have time to play it.
Thanks for your thoughts!