Why Shadow blessed Sunny

In recent chapters it is made clear that shadow cursed all from his side and daemons to be deathless

He was hated by his own for creating death

Shadow had a beef with War also Shadow lanterns description

Sunny is from Wars realm

No one got Shadows Lineage

There may have been many cursed by him

But not a one blessed

So why did he even blessed Sunny He isn't the type to bless

And even killed the tyrant awakening (sort of) himself from his slumber

Is there something that is not revealed or am I being paranoid