Warlock stealth?

The Other Guldan in The Tomb of Sargeras used a fel cloak against Kadgar… it’s in the book “The Tomb of Sargeras” … that’s the just of the post using the Fel for a stealth isn’t unheard of… thoughts?

It’s Magic, In literary terms you can use it to whatever you want, for whatever reason that is convenient to the plot story progression.

In WoW its divided by school who kind of limit each one, but if i am not mistaken both Fel and Arcane are very versatile forms of magic, but even if ignored that case you talk about, Shadow magic is very much associated with similar effects.

So it wouldn’t surprise if they made an Enemy NPC warlock who can go invisible in combat as part of fight mechanics.

But that don’t mean Warlocks (the playable character) will some day gain an ability who allow us to become invisible.