So, a weird bug here with breaker hero deaths / status not syncing to the server if a brief disconnect happens while battling
As we can see, my Merlin died in the previous battle. 
However he is available to use in the next battle, and doesn’t appear in the ‘revives’ screen.
This is not a visual bug - I could indeed use him in the next battle, and afterwards he was perfectly alive - as if he’d never died at all!
I got briefly DC’d at some point during or after the previous battle, which is presumably the cause of this. Maybe he died while the server was reconnecting & it only reflected in the client in the hero list at the bottom (correctly), but didn’t register his death on the server 
