Holy Irene,the latest episode was dramatic/intense 

Anyways,I think that Aphmau will use the relic that Derik became.The main reason is what the relic looks like.I think it looks similar to Irene's relic.Here's a side by side view.

The fact that The Realmbreaker is the gang means that they can seal Micheal away,and save Aaron.But there's one problem:Aaron's trapped and there's no surviving Lycan.Because of what Hyria said in MCD season 2 episode 100,the only ways to use a relic are-

1.Be part of the relic's bloodline

2.Have a similar personality to the original wielder

   There's one huge question:Who has a similar personality to Shad?

I'm very confused about this,so bye.

This is now a Aphmau theory.I almost forgot!In the newest episode,Irene tells Alina that Aphmau deserves "your wish."

The mini-series that Alina appears in is called "Her Wish". I'm probably overthinking this,but might be a clue to what Alina's power is.If she can bring people back from the dead,when she as Shad's relic(which we don't know the powers of exactly),then that means she has some of Irene's relic.She obviously can change her appearance,and due to her being related to Shad,she might be able to transverse realms!

After watching "One Last Time" ,I noticed that Alina asked Aaron if his parents died when he was young.That means in the MCD universe,Aphmau and Shad will die.Maybe Aphmau will die trying to kill Shad.The possibly newfound Divine Warriors use their relics and shatter Shad's mortal body,then seal him away.