Discuss Divinity Original Sin, as well as comments posted to our Divinity Original Sin Wiki and Divinity Original Sin 2 Wiki
By Anonymous
In combat will likely mean you will be able to act first each round with about a +10% critical hit chance and 10% bonus to damage for 3 rounds (Summoned creatures benefit from more damage).
Outside combat will mean you can find most hidden treasures or traps.
For equipment it will allow you to bypass requirements for equipping most gear while active.