Behold! I name this..........The 'Friendzoned Build'. Now you are near immortal for the vast majority of the game and deny majority of the enemies who are trying to build a relationship with you in combat.
Basically the build revolves around Quen and high intensity to keep it infinite and gaining stamina+adrenaline in return (Quen is the shield one for those that are unfamiliar with the name) as well as character ability points invested into Precise Blows, Crippling Strikes, Flood of Anger, Razor Focus, Resolve, Exploding Shield, Active Shield, Quen Discharge, Quen Intensity, Adrenaline Burst, and finally Focus.
When you attack, you gain adrenaline points.
When you take damage you don't lose any adrenaline points. You actually gain adrenaline for taking damage with Quen active.
When you attack and cause bleeding to them (Crippling strikes/Square) they are likely to succumb to fatal blows and critical hits more often. More fatal blows/Critical hits = restores 25% of your stamina. More stamina = More Sign/Attack/Dodge usage. More Sign/Attack usage = more Adrenaline back in return for Flood of Anger to kick in and increase Quen sign intensity to 125% once more. In short, the enemy is doomed.
(Without the Flood of Anger nerf this would of been possible to get an endless amount of intensity and kill anything in sight, but they fixed the endless intensity glitch so the barrier can still break from certain enemies in the game such as the Golem's ground pound which is still a lift on Geralt so it will break automatically no matter what. However, none of it truly matters since the A.I enemies are not exactly intelligent anyway..so you can just bring up another shield if you wanted due to your high stamina returns from fatal blows.
This helped me complete the game on the hardest difficulty no problem. I may make a video of it since I don't see it on Youtube or site guides/forums, so I figured I should post it.
Don't even get me started with these by the way:
Basically the odds are in your favor no matter how hard the enemies are. If you are looking to go for higher difficulty setups just to get it over with, you can try these. If you are looking to enjoy the story on your next game with nothing standing in your way never fear! Quen will do the work for you (unless you are really bad at the game, which I doubt).
If you are playing the game on easy mode, you will probably feel like a god when you make eye contact with an enemy. It's moments like these where you'll find a human/monster and say:
Happy day everyone and enjoy.