Only for sen's fortress invasions you filthy roleplayer.
For maximum roleplaying:
-leave endurance at 12 and vitality at 50 for sweet midroll (just like ricard!)
-don't infuse anything with chaos (or any other element)
-use large arrows and everything +10 only (just like ricard!)
-suck ass (just like ricard!)
If you want to be realistic and enjoy invading just follow the guide.