Larian Studios Forums Divinity: Original Sin 2 Divinity - Original Sin 2 - General Guerilla + attack vs flurry for rogue?

It does add damage. If you use sneak to hide from enemies and therefore be unattackable, Guerilla will increase the gain, because you will be able to hit even harder than you would be able to do using this tactic anyway. That is the meaning of synergy between Guerilla and Sneak abuse.

But seems pointless to argue more with you here, because you are focusing to hard on the 1,5x concept.