Feedback:User/Storm of Ideas/Power Signets

I have an idea for new game mechanic in pre-searing. After adding daily quests a lot of people say that they are hard to do alone. I think there should be something like Power Signet for each PRIMARY profession. They can be avaiable from not easy quests at level 10. Each profession have own signet that use "no attribute". That signets should be good skill but not too good. For example :

warrior - Power Signet. Your next attack skill will kill the target foe. Initial effect : you are healed for 25% of maximum health.

ranger - Power Signet. Your next arrow will poison the target foe (10seconds) and deal double damage. (counts with other ranger's skill effects)

monk - Power Signet. Hit target and foes adjacent to that foe. Deals 50 holy damage. Also blocks 3 upcoming attacks.

necromancer - Power Signet. Steal all target's life. Initial effect : your maximum health is inceased by 100 for 10seconds.

elementalist - Power Signet. Target and foes adjacent to that foe are set in fire for 6seconds. Also reduce taken damage by 30 for 6seconds.

mesmer - Power Signet. All your mesmer's attributes are set to 12 for 7seconds. Initial effect : summon ether wolf that protects you from taking any damage for 4second.

I'm not sure if they should recharge ressurection signet.

All signets should be useable only after ~10 killed foes (new "killed bar") or after gaining morale boost.

After leaving pre-searing signets should be removed from player's skill list.