Enchant creature you control
Enchanted creature has "

: This creature deals 1 damage to any target."
Sacrifice this Aura: It deals 1 damage to any target.
Remember that you tap the creature as part of the cost of activating Fire Whip's granted ability. So, if you have two Fire Whips on a creature activating the first one will tap the creature, so you can't use the second one or any other ability which requires tapping the creature until you find a way to untap it.