Dragon npcs

I suggest sea, ice and sky dragons. They are all tier 17 and abilities are as suggested:

Sea: Can create water tornado which sucks animals in and brings them to it. (Phoenix ability and Sea Monster ability)

Ice: Can disguise as a hill and create ice balls that can stun and damage your opponent.

Sky: Survives on air and not water, can fly very high (higher than Eagle) and grab animals randomly. Can fly for as long as it likes unless grabbing prey. (like overpowered Pterodactyl and Eagle)