The Six Skills
5. Health: Adds 50 health to Max HP, maximum is 950 health points with health artifacts, maximum without artifacts is 600. Also adds 15 health to med pack healing per point, and the pack starts at 30 hp
Tips and Tricks Tips on having good stats
When you make a new account and get to level one you get your first skill point and every level after you get another point. What you should do is increase your HP and defense to ten, upgrading accuracy, strength and explosions as needed to acquire guns. Putting a point into luck for the cash is a good idea, however it is worth noting that luck doesn't help overly much unless you have a sizable amount of it. In addition, strength should be the last to be maxed, only get it as high as is needed for the weapons, going higher is a waste unless you're 1 point off from a medal.
Why max health?
A common misconception is that Defence is better to upgrade than HP, but this is not true. Defence only makes a difference when it is maxed out; HP gives you more survivability instantly. For example, at +5 defense and +0 health you die more quickly than if you are at +0 defense and +5 health.
You should upgrade HP to 10 before upgrading Def at all. At 10/10 You should buy Defense artifacts before HP artifacts to help fill in the deficiency in def.