Mine is just 200$ kinda laggy but fine with low settings, can run on Mid High on 30 fps do on LoL, I agree on Metal but if you are going to spend 800$ I prefer getting a desktop, or a gaming computer. I've found a Gaming Computer half of your budget on Walmart or Best Buy before but I think it's outdated.

I've listed what I think is good enough to run those games:

1. MSI GP62 Leopard Pro-002 Gaming Laptop

http://www.amazon.com/MSI-GP62-Leopa.../dp/B00ETM09LK

MSI is an overall good brand for gaming computers, I've seen a couple of Gaming Youtubers who owns this but I cannot confirm that they're using MSI.

It also has a nifty 1TB space which would be good if he would own a lot of different kind of steam games, and 8GB ram would also be good if he is going to plan on getting a second monitor.



2. Surface Pro 4

This has pros and cons, the cons is that it has limited hardware space and I think you can't get it anymore with 1TB of space without getting 2,000$ the lowest it can go is 128GB of space but is pretty neat if your brother is also interested in Digital Arts while playing games.

This is slightly overpriced by a couple of hundred dollars but it has more features and is kinda portable.


3. Lenovo Z70 Gaming Laptop

http://www.amazon.com/gp/product/B011HNT0UE/

This has a 4 hour battery life when not charging but that wont be such a problem when your brother leaves the laptop charged. But the problem will obviously occur when leaving for road trips.
It's slightly cheaper on Amazon and is a good computer overall.

4. MSI GP Series GP60 Leopard Pro-825 15.6-Inch Gaming Laptop

http://www.amazon.com/dp/B00TI6TAJ4?psc=1

Another slightly over the budget laptop but will bring a better performance, I hope.
It almost has the same specs with the Lenovo Z70 Gaming laptop, but with a different Processor, it has an Intel Core i7-4720HQ 3.6 GHz Processor.

Overall I would recommend the Number 3, or the number 1