so what bosses would you like to fight?

my choise would be a giant dragon.
The bigger the better
players can only do great damage to its head that is constantly moving
the dragon can cause damage with its claws, wings, teeth, tail, and fire breath
the only way to get his head down is all the players dodging his attacks that would be random until he blasts his fire breath. timing has to be right to attack any before he will push you back with his wings and claw everyone and any after would get burned.