Trying to understand Sigils
Scepter – Sigil of Earth (60% Chance to cause 5 second bleed on critical)
Dagger – Sigil of Corruption
Staff – Sigil of Force (+5% damage)
No you cannot stack more than 1 type of buff. Sigil of Force on staff will make your DS attacks hit harder when it’s equipped.
Thanks, Jaha!
I also just found this thread which linked to a useful youtube vid:
https://forum-en.gw2archive.eu/forum/game/players/Did-you-know-that-not-all-weapon-sigils-stack
Also http://wiki.guildwars2.com/wiki/Sigil scroll all the way to the bottom and look up Notes #2 =) I made the same mistake when i first hit 80 too, hehe
PS: If you wish you can put the corruption in your staff, the buff will remain even when you switch to ur scepter/dagger combo.