Deathstrikes have always been rough, a lot of people don't play with sound so they never hear it. I play with sound, mostly for my mage play it helps me know what is being cast at me, etc..but it helps with things like deathstrike also. I've been able to teleport away while deathstriked, mayb if you go 5 teleports you will get hit by the damage, but I never get that many in before that 14 or what ever hits. A debuff for deathstrike would be nice, but it lasts what 3 seconds? 5 seconds? I don't know if that is even enough time to bother wasting a spot on the debuff bar to let you know. But what deathstrike has done for me is teach me to not run, you can run sure but you don't need to and I've found that not running works out very well for me.