People have never stopped using cards because of the addition of other cards. Besides, healing is hardly existent in PvP. And if you use healing, the only decks you have to worry about are ones that include death and have no permanent healing. Rainbows wouldn't use this card because they rely on healing. People definitely wouldn't stop using heal, drain life, miracle, or any other spells that heal. If this card gets played, you just don't heal yourself that turn. And they definitely wouldn't stop using permanent healing because those are very very useful. This card is too situational for people that use healing to worry that in every game they play they won't be able to heal.
