Quindent of Tiamat

someone should make the quindent of Tiamat. Each of the 5 chromatic dragon types sit atop a point. When you hit with it you roll a d6,

1. Deal 1d10 cold damage. 2. Deal 1s10 poison damage. 3. 1d10 fire. 4. 1d10 acid. 5. 1d10 lightning. 6. Players choice of damage bonus. 

Someone please make this as I am terrible with making items. I would like one that is balanced cause I am making a Dragonborn paladin similar to Arkan the Cruel and would love to be able to wield a weapon that embodies the Queen.

I have moved this to the home brew section and have added a few new ideas to it there