Uhm... I did do for Creature Collection III the Black Phoenix of Asherak, a unique 'negative phoenix' type undead. It's shadow causes the dead to rise and pursue the phoenix, and eventually the phoenix's undead retinue catch up to it and destroy it, blighting the land within earshot of its death-scream. Eventually negative energy wells up in this tainted place, a bird sickens and dies within it, and a new Black Phoenix is born.
There's a bit more to it than that, but that's the gist. I didn't particularly like the picture done for it...
So, I submit to you CCIII, - Phoenix, Black.
Vrylakos