Suddenly it’s benefitting from ALL perks even if you don’t have them learned in the skill tree and the explosions seem to deal a ridiculous amount of damage. Not that I am complaining but either they rolled out a major stealth buff or it’s a bug.
It has been this way all along. I played in 2 of the betas and worked this way then too.
It’s simply your fireball cut in half. Also it works for everyone around you too.