Damage Reducing Treasure Enchantment for use with Tipped Arrows

This could be an enchantment for bows and/or crossbows. It could reduce the damage of the arrow to 0, but boost its velocity/travel speed. With this, perhaps it would be easier to deliver potion effects to players and mobs, as well as allow healing potion/health regeneration potion tipped arrows to be useful by not having them damage the target you are trying to heal.