Ophidiophobia

Enchant creature
If the enchanted creature is put back in it's owners hand or die this card is placed on the field. If another creature with the same name enters the field this card is equipped to that creature.
Enchanted creature cannot block a snakes or cobras or attack if there is a snake on your opponents field. If this spell targets a snake it dies, if the target has an ally that is a snake it is returned to their owners hand.