Guild Wars 2

Signets for Heal
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- Signet of Malice ( thief, 1+1/4sec

low heal when hit, but has many skill for alive

- Signet of the Ether ( mes, 1sec

3s each heal , but has many skill for alive

- Signet of Resolve ( Guardian, 1sec

high heal

- Healing Signet ( Warrior, 1+1/4sec

auto heal with high armor and has Resistance

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- Signet of Vampirism ( necro, 1 + 1/2 sec

long cast time for easy cc, small heal when get hit!!
few or no skill for alive
small effect when active

In a Pve setting, Blood Fiend is effectively our “passive” equivalent heal. It’s something like 1000 health every 3 seconds baseline. Go with that instead.

If I could sway Anet though, I’d change Sig of Vampirism so the passive would inflict Life Stealing on hit. That way the passive could be more selfish but useful, whereas the active would still be good for the party.