Hydra (Three Headed Dragon) -Defense

Main Idea:
Hello, my name is Austin Grech and i have a new idea for a defense system to protect your village. Introducing the Hydra three headed dragon that has a hatred for enemies. The dragon doesn't roam around your kingdom like the Barbarian King or the Archer Queen, but stay in one place. It can hit three different troops at the same time or hit the same thing at the same time. The uniqueness about this defense item is that all three heads of the dragoon is different. One head is the element of fire, and launches fire balls at enemies. The second head is the opposite of fire, it is the element of ice and it freezes and hurts the opponent at the same time. Lastly the third head of the dragon is the element of poison. Once it hits the troop it slowly dies of the poison and the poison can be removed by a healer. The only thing you would see is the heads of the dragon showing out of the ground is their heads, not their full bodies.

Optional Changes:
- I haven't chose a certain level that you will unlock this dragon.
- A way of doing this dragon is it starts off as one dragon then as it levels up it gains more heads as you go.
- The dragon could roam your village it doesn't matter, i'd prefer it not to but it's what everybody would prefer.
- I don't know how many hit points it will take, how much damage it does, it's fire rate. radius of hitting, or how much this will cost in the shop.
- I would like the dragon to hit air and ground troops but it could only hit one.

Personal:
I'm open to your ideas and changes, i want to hear your opinion on my idea, and to hear your decisions on my optional changes.

Closing:
Thank you for reading this and hopefully my idea will actually happen. If you know what a Hydra is that's a good advantage, if not look it up in Google images or battle.net because Diablo III has made this creature but not all the features I've added to it.