A full DG warrior with proper Sword gears can be devastating on chaos raids yes. The 'skill' you're referring to is the divine strike, is global to all dl/edl weapons.
Unfortunately the your lack of a divine offhand n skill compared to a rondel rogue or quiver ranger prevents you from being too good on chaos but nothing by any means inferior to the point of being useless
U done tests taking in hotswap loss + void gele with food vs edl sword with food and 2 godly havocs vs 2 godly prot attack?
If you know how to calculate the length a building by comparing your shadow length with its shadow, you can pretty much deduce the same thing for every other buildings.
Once you did a thorough test with a set of gear, and have a theoretical model for it you can apply to everything else, and also for other classes if you have fundamental understanding of the game and its variables
Its not what you think, its how you think