Well, Origins had quite a bit of it, but due to the open-ended nature of the game, it didn't force it on you and allowed you to approach things in different ways. Still, Origin's stealth system was far better than any of the other ones that came before it. It just felt right. The poison I ended up using a lot. Works different than previous entries, in the sense that in previous entries, poison darts or bezerk darts would only affect a person at a time, where here if you have poison, you can poison bodies leaving clouds of poison for your enemies to wander into spreading contamination as they patrol around. It's a fun tool. In general, I find the stealth system is much better and easier to stay hidden as long as you don't do something stupid to reveal yourself. Unlike previous games, you can actually use the environment against them such as burning animal cages to unleash havoc on unsuspecting enemies and watch as it all unfolds.