Pluto could bring Helena and Hermione back to life, and then give them each one of these rings of power.

Dorne is beautiful... I still remember Princess Meria of Dorne's iconic speech to Queen Rhaenys, one of the wives of Aegon the Conqueror. Princess Meria: You may burn us, my lady... but you will not bend us, break us, or make us bow. Princess Meria: This is Dorne, you are not wanted here. Return to your peril.