DarkPearl
As the doors open, a black dust is released into space. You hear a booming voice coming from the dust:
Thank you, I have been released from that prison! This galaxy shall pay for what it did to me! I will build up an armada capable of wiping out all lifeforms in this galaxy! Since you so kindly released me, I am offering you an alliance. Together, we shall be the end of all lifeforms!