I would have found this to be a very interesting card if it was target creature has a 70% chance to be blinded rather then all creatures have a 50% chance to be blinded. Blinding as a mass area of effect card is the god of all soft-cc which can turn very hard if the enemy creatures have something like rage as their ability and kills off one of their own. I'd much rather see it just have a higher chance to target that rage creature, but only that one, then every creature on their field/both fields if unupped.