Guild Wars 2

first, those “chance of something happening on critical hit” sigils. is it me, or do they overlay each other, and only one of them will work? i’ve spent some time in the mists messing with them, but it seemed that even with using only the auto attack, only the offhand’s sigil would work. also, is there a reason to use two of the same sigil of that kind? like two sigils of air, for example.

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second question is about those sigils that charge when you kill something. i couldn’t test on the mists (as killing those golems and the training NPCs don’t count), but will they overlay each other too? i wanted to use two of those on my main set (one that gives condition damage per charge, and one that gives healing power), but i don’t want to buy them before making sure.

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thanks in advance

I can answer your second question. Only 1 charge will work

My undertanding (and this is based on what I’ve been told, not my own research) is that similar effects tend to share a cooldown. Furthermore, the main-hand weapon is checked for a proc and, if it procs, the off-hand is not checked, so you cannot have two procs on a single hit.

I found this out the expensive way after buying and using several Sigils which stacked buffs.

From the Wiki:
http://wiki.guildwars2.com/wiki/Sigil
Notes
Sigils that hold a charge per kill cannot be stacked (i.e. +5 power per kill and +5 condition damage per kill) one or the other shows up. This applies even if you swap weapons. For example if you had two different “On kill stacking stat bonuses” sigils on two different weapons, only the sigil of the weapon you make a kill with first will take effect. If you swap weapons and make a kill, the sigil from the second weapon will not take effect.
Charging and non charging sigils can be stacked.
Sigils that trigger on critical hits can trigger on any critical hits; the critical does not need to be scored with the associated weapon’s skills (e.g. a character with an offhand weapon imbued with a Sigil of Rage can still gain quickness when critting with their first three skills)
Sigils that have a chance to trigger on critical hits stack their chance percentages multiplicatively, not additively (e.g. two major sigils of fire – 20% chance on crit each – give a 36% chance on crit, not 40%).

well, there goes my build. thanks for the clarification everyone.

now i need to find something else :/ maybe +bleed duration, since my build is about stacking them.