Tyrael: In the end, it was a mortal heart that saved two worlds from ruin and cast down the Prime Evil forever.
The Prime Evil quest is the last quest of Act IV in Diablo III (2012), where the player defeats Diablo the Prime Evil. The quest begins after entering the Gateway to the Silver Spire.
Imperius: You! Your kind does not belong here! If I see you again, you will die!
Diablo: Every moment I delay you, I draw closer to my ultimate victory.
Necromancer: Leah is gone. The power that slept within her belonged to Diablo. And he is reborn, stronger than ever. The Heavens were his true target all this time. And now the angels stand on the brink of annihilation.
Diablo: Even in the heart of Heaven, angels can still feel fear.
Adria: I come with urgent news. Leah has had another vision — a vision of twisted, demonic towers and enormous hearts beating within them!
Tyrael: I know of them; they are the Sin Hearts. Azmodan must have dredged them up from the depths of his realm to empower his legions.
Necromancer: Not for long.
Tyrael: The battle is ours!
- Find the demon gate at the Edge of the Abyss past Rakkis Crossing
I have the privilege of fighting alongside Tyrael himself. Though he is mortal, he still possesses the will and temperament of an angel. Watching him slay the demons firsthand will be a perfect meditation on role of the Balance.
Leah: The soulstone seems stable now.
Adria: The demon’s rage has been subdued.
Tyrael: Yes, but for how long? Our time grows short! We must take this fight to Azmodan!
Necromancer: To the battlefields, then!
Lieutenant Lavail: Terrifying noises were coming from the armory, so Tyrael went to investigate. He said if you were to return, I should send you there.