Need Arreat Summit info
 

I know sov or voll is really good at finding that kind of information, i been sitting here for 10 min trying to look for cap at deathly strike but can't find it, it should be at the place where 50% cap is. I just asked some people, some said it cap some said it doesn't.

DS has NO CAP

what happen if you hit 200%, would it be the same as 100% DS?

Basically, as far as I can tell, due to the way they handle stacking Rainbow Facets, I would say it would be handled the same.

Deadly Strike
This is a chance of doing double damage. This bonus is applied after skills such as Critical Strike and any other damage bonuses. Critical Strike (CS) and Deadly Strike (DS) exclude each other.

If you have a 33% Deadly Strike item, and 68% Critical Strike Skill the complete chance to get double damage is:

=CS + (DS/100)*(100-CS)
=68% + (33/100)*32%
=68% + 10.56%
=78.56%

http://www.battle.net/diablo2exp/items/magic.shtml#sma

Thats all I could find.

Arreat summit says nothing on Deadly Strike caps or anything. The only way you could tell is by testing it on Open, really...