Not necessarily true. Generally, Attack is more useful than HP on creatures, and for this card to actually give the amount of attack a Blessing gives (3) or more, you need to wait two turns, assuming two buffs are played on the same creature. If you don't play buffs on the same creature, it becomes three turns, which is a fair bit to a rush. By then, this card could be destroyed, or you are screwed. Also note that this card is fairly expensive, so that adds more towards turns needed to get the same buff as Blessing.