Guild Wars 2

I’m looking for a build to kill her on an ele (or guardian). I’ve tried a lot of builds but have not been able to kill her yet. Any help?

I heard blind negates the bombs’ explosion damage, so I guess signet of air is good?

Could go full on safe with blindspams i guess, as Kaz suggested.
http://gw2skills.net/editor/?fEAQJArdhImcbnx5gjDIjHggHQCiHWQDwhlC5AA-jEyAYrgQQAIRIZvioxW1KiGruGTdSEV75JiqlCIilRA-w

Something like this perhaps?

What worked for me were Signet of Air and Signet of Water (for the passives). The first gave me a permanent speed boost (without having to worry about casting speed skills) and the second handled most of the crippling. That allowed me to keep running the circle in the second phase with almost no dodges.