This aura tracks nameplates and your Serpent Sting on them as progress bars.
Only use this aura with 2 pieces of Tier 9 equipped, as this allows Serpent Sting to critical strike and therefore multi-dotting to be worth.
To apply Serpent Sting through mouseover use a basic mouseover macro like this: [@mouseover,harm,nodead][]Serpent Sting
I highly recommend the "Plater Nameplates" addon. My profile: https://wago.io/ARd3KOcDS
Let Serpent Sting drop off before reapplying and do not overprioritze it in our priority rotation.
For performance reasons triggers to check for the item set to be equipped are not implemented.