Guild Wars 2

So Im wondering about this: Im guardian using sword and shield, if i apply sigil of water (30% chance to heal allies) on both weapon and shield, will the chance still be 30% or it will be 60%?

if either procs both will go on cooldown so it really doesnt matter

I haven’t tempted this personally but I’m under the impression that it just doubles how much you get with each kill until you hit the max of 25.

1) Proc sigils share the same cool down. However you can stack multiple copies of the same proc sigil to increase the proc rate (instead of causing multiple procs).

2) The GW2 Wiki calls the stacking system to be multiplicative. Basically you take your failure % and use it as a multiplier against the base proc chance of the 2nd sigil. You then add this reduced proc % value to the original sigil’s proc % value for a combined total.

Example #1
You have a Superior Sigil of Water with a 30% proc chance. This means that Proc #1 has a failure rate of 70%. You then multiply the starting Proc #2 value of 30% by .7 (to represent the failure rate). This reduces the proc rate of Proc #2 down to 21%. Finally you add the value for Proc #1 (30%) and Proc #2 (21%) for an adjusted total of 51% proc chance for your Sigil of Water.

Example #2
You have a Superior Sigil of Purity with a 60% proc chance. This means that Proc #1 has a failure rate of 40%. You then multiply the starting Proc #2 value of 60% by .4 (to represent the failure rate). This reduces the proc rate of Proc #2 down to 24%. Finally you add the value for Proc #1 (60%) and Proc #2 (24%) for an adjusted total of 84% proc chance for your Sigil of Purity.

Ayrilana.1396:

I haven’t tempted this personally but I’m under the impression that it just doubles how much you get with each kill until you hit the max of 25.

You’re thinking of the kill stack Sigils. As you stated, you are correct that there is a cap of x25 stacks (no matter how many kill stack Sigils you might use).

The OP was talking about % chance proc Sigils, which is a different subject that I have already answered in the above post.

Yeah I missed that bit

Wiser with Age.3714:

1) Proc sigils share the same cool down. However you can stack multiple copies of the same proc sigil to increase the proc rate (instead of causing multiple procs).

2) The GW2 Wiki calls the stacking system to be multiplicative. Basically you take your failure % and use it as a multiplier against the base proc chance of the 2nd sigil. You then add this reduced proc % value to the original sigil’s proc % value for a combined total.

Example #1
You have a Superior Sigil of Water with a 30% proc chance. This means that Proc #1 has a failure rate of 70%. You then multiply the starting Proc #2 value of 30% by .7 (to represent the failure rate). This reduces the proc rate of Proc #2 down to 21%. Finally you add the value for Proc #1 (30%) and Proc #2 (21%) for an adjusted total of 51% proc chance for your Sigil of Water.

Example #2
You have a Superior Sigil of Purity with a 60% proc chance. This means that Proc #1 has a failure rate of 40%. You then multiply the starting Proc #2 value of 60% by .4 (to represent the failure rate). This reduces the proc rate of Proc #2 down to 24%. Finally you add the value for Proc #1 (60%) and Proc #2 (24%) for an adjusted total of 84% proc chance for your Sigil of Purity.

Thanks for the info and the examples! (rushes off to get another sigil of fire).